Now that ShaderMask works on web, enable it for CupertinoContextMenu and unskip relevant tests.

8feb2e780 [tool] Improve check version ci so that it enforces the version in CHANGELOG and pubspec matches. (flutter/plugins#3678) (#77854)

* Adds set text semantics action to render editable

* addressing comments

* re-enable test

* fix test

* fix more test

* fix bad merge

* addressing comment

* update dynamic to Object?

735e1a520 [image_picker] Implemented 2860 and added Unit Test to test functionality (flutter/plugins#3685) (#77827)

* Impl

* Escape$

* eofnl

* Make message more clear