Roll Flutter from b7d0e8c to 8936504 (15 revisions) (flutter#4947)

flutter/flutter@b7d0e8c...8936504

2023-09-19 [email protected] Roll Flutter Engine from e1c784e3f841 to 589bde9a95c9 (16 revisions) (flutter#134998)
2023-09-19 [email protected] Reland Resolve breaking change of adding a method to ChangeNotifier. (flutter#134983)
2023-09-18 [email protected] Revert "Resolve breaking change of adding a method to ChangeNotifier." (flutter#134978)
2023-09-18 [email protected] Resolve breaking change of adding a method to ChangeNotifier. (flutter#134953)
2023-09-18 [email protected] Fixes focus traversal crash if the current node can't request focus (flutter#134954)
2023-09-18 [email protected] Access to fragment in router state on page refresh (flutter#131123)
2023-09-18 [email protected] Enable private field promotion for framework (flutter#134473)
2023-09-18 [email protected] Cover more test/widgets tests with leak tracking #6 (flutter#134884)
2023-09-18 [email protected] Cover more tests with leak tracking. (flutter#134805)
2023-09-18 [email protected] Cover more test/widgets tests with leak tracking #5 (flutter#134869)
2023-09-18 [email protected] Don't uninstall before retrying to connect during app launch (flutter#134542)
2023-09-18 [email protected] [flutter roll] Revert "LinkedText (Linkify)" (flutter#134955)
2023-09-18 [email protected] Fix memory leak in _DarwinViewState. (flutter#134938)
2023-09-18 [email protected] Roll Flutter Engine from be7a039c5451 to e1c784e3f841 (3 revisions) (flutter#134956)
2023-09-18 [email protected] Migrate the "Missing frames / speed related performance issues" issue template to use Github forms (flutter#134033)

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.ci/flutter_master.version

@@ -1 +1 @@
-b7d0e8c9ed70126ac95a1b2d3e1651555913ee3b
+893650416352789ec1253f69603589802f2b3f51