v9.0.0

Release v9.0.0

Recent improvements:
- Update GitHub workflow permissions and cleanup redundant token
- Update build workflow configuration
- Format GitHub workflows and update SonarCloud project configuration
- Refactor: remove unused imports from AddTrivyComment
- Add MIT license and language switcher to README files
- Fix: optimize Trivy comment package name matching warning logic
- Fix unit tests for multi-link severity comments