Roll Flutter Engine from 18118e10a0a5 to 679c4b42e222 (4 revisions) (#119783)

* edba2d078 Roll Skia from a2e706ab283d to 934ef0660509 (7 revisions) (flutter/engine#39327)

* 387a894f6 Roll Fuchsia Mac SDK from 31KOCvc_d1yPT_yes... to j5rQsxkO2VJrX55Yj... (flutter/engine#39328)

* b8b49e161 Roll buildroot to #75f75b73. (flutter/engine#39329)

* 679c4b42e Roll Dart SDK from 1c219a91e637 to 99014717b633 (1 revision) (flutter/engine#39330)
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index 365967a..a8bedb1 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-18118e10a0a590525aa6bcc33141ea7e0942f137
+679c4b42e222e7b8f1e438561897bf42df7c6ea1
diff --git a/bin/internal/fuchsia-mac.version b/bin/internal/fuchsia-mac.version
index d8614fc..5439f3d 100644
--- a/bin/internal/fuchsia-mac.version
+++ b/bin/internal/fuchsia-mac.version
@@ -1 +1 @@
-31KOCvc_d1yPT_yesciXO8W4LbPQr4G7spDVh7ffzqcC
+j5rQsxkO2VJrX55YjCt5zNXSbcHxsiUE7pTMG5HcJ6sC