Roll Flutter (stable) from 18a827f3933c to eb6d86ee27de (2 revisions) (#6537)

diff --git a/.ci/flutter_stable.version b/.ci/flutter_stable.version
index 20445c3..c26442d 100644
--- a/.ci/flutter_stable.version
+++ b/.ci/flutter_stable.version
@@ -1 +1 @@
-18a827f3933c19f51862dde3fa472197683249d6
+eb6d86ee27deecba4a83536aa20f366a6044895c