Add release-all.yml to CI workflow list in README

Documented the master release workflow (release-all.yml) in the CI/CD section of the README for better visibility of available workflows.

README.md

@@ -340,6 +340,7 @@ YTSage/
 │   │   ├── build-linux.yml        # Linux build workflow
 │   │   ├── build-macos.yml        # macOS build workflow
 │   │   └── build-windows.yml      # Windows build workflow
+|   |  └── release-all.yml          # Master release workflow
 │   └── 📄 CI_CD_README.md        # CI/CD documentation
 ├──  📁 assets/                    # Static assets and resources
 │   ├── 📁 branding/              # Branding assets