Roll Flutter from 22e17bb71050 to 298d8c76ba78 (20 revisions) (#7190)

* f85438bfa c8b1d2ffa Roll Fuchsia Mac SDK from YpQKlqmyn8r_snx06... to xl9Y8o-9FDyvPogki... (flutter/engine#39675) (flutter/flutter#120887)

* 174a562a6 d699b4a Roll Flutter from e3471f0 to df41e58f6f4e (83 revisions) (#7184) (flutter/flutter#120888)

* 170539f83 Roll Flutter Engine from c8b1d2ffaec8 to 0d8d93306822 (2 revisions) (flutter/flutter#120891)

* df98689c9 2be7253c9 Roll Fuchsia Linux SDK from q7u2WyX2BSRBIzyTW... to yT4JLKTCWWwbRwB0l... (flutter/engine#39679) (flutter/flutter#120898)

* cacef57b6 [flutter_tools] Skip over "Resolving dependencies..." text in integration tests (flutter/flutter#120077)

* 34102ca3b Migrate channels to pkg:integration _test (flutter/flutter#120833)

* df13ea248 Roll Flutter Engine from 2be7253c9b10 to e4cb80e22ee1 (2 revisions) (flutter/flutter#120903)

* a2e65f7c3 Roll Flutter Engine from e4cb80e22ee1 to 4a90fbcd6901 (2 revisions) (flutter/flutter#120911)

* e00241a06 Enable Windows plugin tests (flutter/flutter#119345)

* 09ad9f3cd Document ScrollPhysics invariant requiring ballistic motion (flutter/flutter#120400)

* 6029de2fb Update switch template (flutter/flutter#120919)

* 229d70ea3 Roll Flutter Engine from 4a90fbcd6901 to bddfc1c4dcaa (5 revisions) (flutter/flutter#120920)

* 206c6ae99 roll packages (flutter/flutter#120922)

* 9fcaaebb5 Roll Flutter Engine from bddfc1c4dcaa to 6602fc753525 (3 revisions) (flutter/flutter#120928)

* 00c0a07fa Increase Linux docs_test timeout (flutter/flutter#120899)

* e29a79975 946b29198 [dart:ui] Introduce `PlatformDispatcher.implicitView` (flutter/engine#39553) (flutter/flutter#120939)

* 081cd5776 650db7a72 [macOS] Eliminate mirrors support (flutter/engine#39694) (flutter/flutter#120943)

* 875e48c69 52a4fb4c5 Roll Skia from b1800a8b9595 to d0df677ffd5e (13 revisions) (flutter/engine#39699) (flutter/flutter#120947)

* 78d058f46 6e92c0c28 Roll Fuchsia Mac SDK from xl9Y8o-9FDyvPogki... to haDvcC5VzWVdQs9Rs... (flutter/engine#39700) (flutter/flutter#120950)

* 298d8c76b Revert "Remove references to Observatory (#118577)" (flutter/flutter#120929)

.ci/flutter_master.version

@@ -1 +1 @@
-22e17bb71050fb6bc18c95fede935fa4715772e8
+298d8c76ba78007deb5b96f320a11ccefe97a794