License update - Batch 65

[mossmana]

Updates the license headers for:

1. tool/README.md
2. tool/RELEASE_INSTRUCTIONS.md
3. tool/analysis_options.yaml
4. tool/bin/devtools_tool.bat
5. tool/bin/dt.bat
6. tool/bin/dt.dart
7. tool/build_release.sh
8. tool/ci/benchmark_performance.sh
9. tool/ci/benchmark_size.sh
10. tool/ci/bots.sh
11. tool/ci/package_tests.sh
12. tool/ci/setup.sh
13. tool/cpu_sample_intervals.dart
14. tool/flutter_customer_tests/README.md
15. tool/flutter_customer_tests/analyze.sh
16. tool/flutter_customer_tests/setup.sh
17. tool/flutter_customer_tests/test.sh
18. tool/json_to_map.dart
19. tool/latest_flutter_candidate.sh
20. tool/lib/commands/analyze.dart
21. tool/lib/commands/build.dart
22. tool/lib/commands/fix_goldens.dart
23. tool/lib/commands/generate_code.dart
24. tool/lib/commands/list.dart
25. tool/lib/commands/pub_get.dart
26. tool/lib/commands/release_helper.dart
27. tool/lib/commands/release_notes_helper.dart
28. tool/lib/commands/repo_check.dart
29. tool/lib/commands/rollback.dart
30. tool/lib/commands/run.dart
31. tool/lib/commands/serve.dart
32. tool/lib/commands/shared.dart
33. tool/lib/commands/sync.dart
34. tool/lib/commands/tag_version.dart
35. tool/lib/commands/update_dart_sdk_deps.dart
36. tool/lib/commands/update_flutter_sdk.dart
37. tool/lib/commands/update_perfetto.dart
38. tool/lib/commands/update_version.dart
39. tool/lib/devtools_command_runner.dart
40. tool/lib/model.dart
41. tool/lib/utils.dart
42. tool/pubspec.yaml

#8216

Pre-launch Checklist

• I read the [Contributor Guide] and followed the process outlined there for submitting PRs.
• I read the [Tree Hygiene] wiki page, which explains my responsibilities.
• I read the [Flutter Style Guide] recently, and have followed its advice.
• I signed the [CLA].
• I listed at least one issue that this PR fixes in the description above.
• I updated/added relevant documentation (doc comments with ///).
• I added new tests to check the change I am making, or there is a reason for not adding tests.