[flutter_releases] Flutter stable 3.13.8 Framework Cherrypicks (#136815)

# Flutter stable 3.13.8 Framework

## Scheduled Cherrypicks
- https://github.com/flutter/flutter/issues/136388
- https://github.com/flutter/flutter/issues/136680
- https://github.com/flutter/flutter/issues/136743
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index 7efc15d..0ecd004 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-a794cf2681c6c9fe7b260e0e84de96298dc9c18b
+767d8c75e898091b925519803830fc2721658d07