3422 [file_selector_platform_interface] Bump the cross_file version. (cla: yes)

3432 [script] Update build_all_plugins_app to exclude some plugins in master. (cla: yes)

3433 Add Labeler Github Action (cla: yes)

3435 [camera] combine release messages and versions (cla: yes, waiting for tree to go green)

3436 [google_sign_in, url_launcher] Document unendorsement of web. (cla: yes)

3437 [plugin_platform_interface] Use Mockito nnbd (cla: yes, waiting for tree to go green)

3440 [google_maps_flutter_web] Hole Direction in Polygons (cla: yes)

3442 Windows nullsafety prep (cla: yes)