Bump test from 1.21.3 to 1.21.4 in /auto_submit (#1957)

diff --git a/auto_submit/pubspec.lock b/auto_submit/pubspec.lock
index f57a1e6..fe9b295 100644
--- a/auto_submit/pubspec.lock
+++ b/auto_submit/pubspec.lock
@@ -637,21 +637,21 @@
       name: test
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.21.3"
+    version: "1.21.4"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.11"
+    version: "0.4.12"
   test_core:
     dependency: transitive
     description:
       name: test_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.15"
+    version: "0.4.16"
   timing:
     dependency: transitive
     description:
diff --git a/auto_submit/pubspec.yaml b/auto_submit/pubspec.yaml
index dc4ef42..dac0771 100644
--- a/auto_submit/pubspec.yaml
+++ b/auto_submit/pubspec.yaml
@@ -32,7 +32,7 @@
   linter: ^1.25.0
   lints: ^1.0.0
   mockito: ^5.0.14
-  test: ^1.21.3
+  test: ^1.21.4
   
 builders:
   json_serializable: ^3.3.0