chore(ci): migrate release workflow to semantic-release and add .releaserc config

[mathisgauthey]

Hi,

I'd like to contribute by integrating semantic-release for automated versioning and release management.

This change modernizes the release workflow by:

• Automating version bumps based on conventional commits (no more manual !RELEASE triggers)
• Generating a changelog automatically in docs/CHANGELOG.md
• Streamlining the process — the workflow now commits, pushes, and creates GitHub Releases in one go
• Following industry standards with semantic versioning and conventional commits

The .releaserc config handles all the heavy lifting, so releases are consistent and reproducible.

Note: I wasn't able to test this on a fork due to workflow limitations, so I'd appreciate if you could give it a try on your end. Feel free to adjust the changelog location or any other settings to match your preferences!

An example of the release process can be found on any of my repositories, such as bulk-timestamp-archiver