Update the ICU library to a38aef9142ace942a8bf166020c569f4cda0f8d3 (#28230) (#28615)

This change is similar to:
* https://github.com/flutter/flutter/issues/82728
* https://github.com/flutter/flutter/issues/87073

We are using a more recent Chromium ICU fork commit.

See for reference: https://chromium.googlesource.com/chromium/deps/icu

Flutter needs to use a reasonably recent version of the ICU library. The
Chromium's fork of ICU, which is in use in Flutter as well, has taken in
a few updates since the initial 69.1 release.

Update the DEPS file in github.com/flutter/engine to use the commit ID
`a38aef9142ace942a8bf166020c569f4cda0f8d3` for the ICU library.

This takes in recent patches to the ICU library, most relevant of which
is a fix for Norwegian language support.

Fixes: #flutter/flutter/88600

Co-authored-by: Filip Filmar <fmil@google.com>
diff --git a/DEPS b/DEPS
index 905817d..487526c 100644
--- a/DEPS
+++ b/DEPS
@@ -152,7 +152,7 @@
    Var('chromium_git') + '/chromium/src/ios.git' + '@' + Var('ios_tools_revision'),
 
   'src/third_party/icu':
-   Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '2a822c5626ab1ed40366758e4740b4f0ea40237d',
+   Var('chromium_git') + '/chromium/deps/icu.git' + '@' + 'a38aef9142ace942a8bf166020c569f4cda0f8d3',
 
   'src/third_party/khronos':
    Var('chromium_git') + '/chromium/src/third_party/khronos.git' + '@' + '7122230e90547962e0f0c627f62eeed3c701f275',
diff --git a/ci/licenses_golden/licenses_third_party b/ci/licenses_golden/licenses_third_party
index a5651ae..11d8ed6 100644
--- a/ci/licenses_golden/licenses_third_party
+++ b/ci/licenses_golden/licenses_third_party
@@ -1,4 +1,4 @@
-Signature: d050875e8a1be4d1c6660001d488883e
+Signature: 4c10c7b0980633ead49e0bf9be6831ba
 
 UNUSED LICENSES:
 
@@ -16851,8 +16851,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -16981,8 +16983,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -17116,8 +17120,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -17250,8 +17256,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -17390,8 +17398,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -17529,8 +17539,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -17664,8 +17676,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -17798,8 +17812,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -17905,8 +17921,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu
@@ -18079,8 +18097,10 @@
 FILE: ../../../third_party/icu/patches/locale1.patch
 FILE: ../../../third_party/icu/patches/locale_google.patch
 FILE: ../../../third_party/icu/patches/locid_operators.patch
+FILE: ../../../third_party/icu/patches/loclikely_uloc.patch
 FILE: ../../../third_party/icu/patches/restrace.patch
 FILE: ../../../third_party/icu/patches/ultag_parse_Null.patch
+FILE: ../../../third_party/icu/patches/unused-var.patch
 FILE: ../../../third_party/icu/patches/wordbrk.patch
 FILE: ../../../third_party/icu/patches/wpo.patch
 FILE: ../../../third_party/icu/source/data/in/coll/ucadata-implicithan.icu