[flutter_releases] Update Engine revision to 6ba2af10bb05c88a2731482cedf2cfd11cf5af0b for stable release 3.0.4 (#106899)

diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index 97b924e..255aa44 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-ffe7b86a1e5b5cb63c8385ae1adc759e372ee8f4
+6ba2af10bb05c88a2731482cedf2cfd11cf5af0b