64980 [flutter_tools] standardize patterns for integration.shard (cla: yes, tool)

64981 Revert “Reland “Re-enable the Dart Development Service (DDS) (#64671)”” (cla: yes, tool)

64983 Share build command flag configuration on desktop (cla: yes, tool)

64984 Flutter stable framework 1.20.3 cherrypicks (a: internationalization, cla: yes, d: examples, engine, f: material design, framework, team, tool)

64988 Add observatory Bonjour service to built iOS Info.plist bundle (cla: yes, platform-ios, t: xcode, team, tool)

64992 Put the unbundled Linux executable in a subdirectory (cla: yes, tool)