Roll Plugins from 9fdc899b72ca to 620a059d62b2 (4 revisions) (#118317)

* 6a24f2d7b == override parameters are non-nullable (flutter/plugins#6900)

* b9206bcfe [espresso]: Bump espresso-accessibility and espresso-idling-resource from 3.1.0 to 3.5.1 in /packages/espresso/android (flutter/plugins#6933)

* b1797c2bb [file_selector] Switch to Pigeon for macOS (flutter/plugins#6902)

* 620a059d6 [google_sign_in] Renames generated folder to js_interop. (flutter/plugins#6915)
diff --git a/bin/internal/flutter_plugins.version b/bin/internal/flutter_plugins.version
index 5328797..4556064 100644
--- a/bin/internal/flutter_plugins.version
+++ b/bin/internal/flutter_plugins.version
@@ -1 +1 @@
-9fdc899b72cac49a4ffade799563c4730c0279a8
+620a059d62b25ce4d7efaa9510be8eb5bf29b9b5