BUILD-8684 feat: Add yarn build action

[mikolaj-matuszny-ext-sonarsource]

• Creates new build-yarn action with SonarQube integration and Artifactory deployment
• Includes comprehensive build script supporting multiple branch types and deployment strategies
• Adds test coverage for yarn build functionality
• Updates project configuration to include yarn build action in coverage and analysis

[sonarqubecloud]

🤖 Pull Request summary

Add new build-yarn action with comprehensive Yarn project support.

• New build-yarn action: Complete GitHub action for building, testing, analyzing, and deploying Yarn projects with SonarQube integration and Artifactory deployment
• Full pipeline support: Handles different branch types (main, maintenance, PR, dogfood, long-lived feature) with conditional deployment and analysis
• Configuration updates: Added yarn.lock to .gitignore, updated test coverage patterns, and documentation
• Comprehensive testing: Added 280+ lines of ShellSpec tests covering all scenarios and edge cases

💬 Please send your feedback

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud