AI-284: Add snipsync markers and trim comments in ADK samples #1282

Job	Run time
build-lint-test (3.14, macos-intel)	8m 53s
build-lint-test (3.10, macos-arm)	9m 9s
build-lint-test (3.10, windows-latest)	8m 4s
build-lint-test (3.10, ubuntu-latest)	6m 51s
build-lint-test (3.10, macos-intel)	11m 41s
build-lint-test (3.14, macos-arm)	7m 41s
build-lint-test (3.14, ubuntu-latest)	7m 20s
build-lint-test (3.14, windows-latest)	8m 27s
	1h 8m 6s

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