This PR adds automatic homebrew formula updates to the GitHub Actions release workflow, eliminating the need for manual formula maintenance when new versions are released.

Changes

Added homebrew job to .github/workflows/release.yml:

• Runs after the build job completes successfully
• Only triggers for release tags (skips pre-release tags containing -)
• Uses mislav/bump-homebrew-formula-action@v3 to automatically update the formula
• Configured for the CGI-FR/homebrew-lino repository
• Uses the correct download URL pattern matching existing releases: LINO_{version}_darwin_amd64.tar.gz

Updated CHANGELOG.md to document the new automation feature.

How it works

When a release tag (e.g., v3.4.0) is pushed to the repository:

1. The existing build process runs and publishes release artifacts
2. The new homebrew job extracts version information from the git tag
3. The action automatically updates the homebrew formula with:
   • New version number
   • Updated download URL
   • New SHA256 checksum
4. A commit is created in the CGI-FR/homebrew-lino repository

Configuration Required

Repository maintainers need to add a COMMITTER_TOKEN secret to the repository settings. This should be a GitHub personal access token with write permissions to the CGI-FR/homebrew-lino repository.

Benefits

• Eliminates manual work: No more manual formula updates after each release
• Reduces errors: Automated process prevents typos in URLs, versions, or checksums
• Faster availability: Homebrew formula is updated immediately when releases are published
• Consistent process: Same reliable automation for every release

This implementation follows GitHub Actions best practices and uses the well-established mislav/bump-homebrew-formula-action which is widely used across the ecosystem for this exact purpose.

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