63250 [flutter tools] Make SizeAnalyzer support .apk files that don’t use libapp.so (tool, waiting for tree to go green)

63252 Bump Cirrus image Xcode version (cla: yes, platform-ios, team, team: infra)

63257 Remove hostonly_tests from cirrus as they are now running on LUCI. (cla: yes, team)

63273 Fixing code snippet example for meetsGuideline. (a: tests, d: api docs, documentation, framework, waiting for tree to go green)

63301 [Windows] Fix unnecessary surface creation/destruction in startup path (cla: yes, tool, waiting for tree to go green)

63306 Clean up some test formatting and comments (framework, waiting for tree to go green)