[ci.yaml] Disable packaging_test on release candidates

Marks Linux firebase_abstract_method_smoke_test to be flaky

Marks Linux_samsung_s10 new_gallery_impeller__transition_perf to be flaky

Marks Mac_ios animated_blur_backdrop_filter_perf_ios__timeline_summary to be unflaky

Marks Linux_android animated_blur_backdrop_filter_perf__timeline_summary to be unflaky

Remove the old canvaskit artifacts to not confuse the web runner.

Marks Linux_android new_gallery_impeller__transition_perf to be flaky

Roll Flutter Engine from 1ba8871b92ba to 8baab9d01ad2 (1 revision)

Roll Packages from bc6a55332f5c to fe5615f8b1de (4 revisions)

Roll Flutter Engine from bc6557264a39 to 1ba8871b92ba (1 revision)

Roll Flutter Engine from 250acbf21239 to bc6557264a39 (1 revision)

Bug report 2 issue template

Roll Flutter Engine from 424be4d91671 to 250acbf21239 (2 revisions)

Roll Flutter Engine from 176ad4a6d8b2 to 424be4d91671 (2 revisions)

Roll Flutter Engine from 11d33002546c to 176ad4a6d8b2 (1 revision)

Roll Flutter Engine from 2123f462f463 to 11d33002546c (2 revisions)

Reverts flutter/flutter#122437

This is causing several Android devicelab tests to fail on the first
attempt, causing them to be marked flaky. The cause appears to be
unexpected output on stderr. See:
https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_arm64_android%20run_release_test/5390/overview

Roll Flutter Engine from ad0e2144a05f to 2123f462f463 (3 revisions)

Add `StrokeCap` to `CircularProgressIndicator`

Roll Flutter Engine from 96cb2f5617bb to ad0e2144a05f (8 revisions)

Exposed EdgeDraggingAutoScroller velocityScalar to ReorderableList

flutter_tools: Flutter Web CLI cleanup

DraggableScrollableSheet & NestedScrollView  should respect NeverScrollableScrollPhysics

Internal bug: b/256596915

Turns out we need to regenerate date localizations in order for the
`intl` package to be setup properly within Flutter. This PR fixes the
script (since it assumes the use of the old `.packages` way of handling
packages), and regenerates the `generated_date_localizations.dart` file.

Mark android_semantics_integration_test as flaky

Moves to a two-step deprecation process for context menus, avoiding immediate breaking changes.

Bump codecov/codecov-action from 3.1.1 to 3.1.2

[integration_test] upgrade androidx test to 1.4.0

Add Mike Rydstrom to AUTHORS

Adds `dart_fix` support to `flutter_test`

Set multiple tests as non flaky.

Roll Flutter Engine from a93118cf7647 to 96cb2f5617bb (4 revisions)

[web] Add benchmarks for the Material3 Components screen

Roll Flutter Engine from 2360950aead7 to a93118cf7647 (5 revisions)

Roll Packages from a2f396cc91db to bc6a55332f5c (6 revisions)

Fixes BottomAppBar with translucent colors.

Fix ShaderMask Example issue

Roll Flutter Engine from 4bd42060e700 to 2360950aead7 (1 revision)

Roll Flutter Engine from d89aea9adf9c to 4bd42060e700 (1 revision)

Roll Flutter Engine from 4a7f3f2a1f12 to d89aea9adf9c (6 revisions)