docs(l1,l2): add release process to docs

[lferrigno]

Adding release process to public docs

[Copilot]

Pull Request Overview

This PR adds documentation for the ethrex release process to the public docs, providing a comprehensive guide for maintainers on how to create, tag, and publish new releases.

• Adds a detailed release process guide covering branch creation, version bumping, tagging, and distribution
• Includes instructions for updating Homebrew packages as part of the release workflow
• Integrates the new documentation into the project's documentation structure

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docs/developers/release-process.md	New comprehensive release process documentation with step-by-step instructions
docs/SUMMARY.md	Adds the release process page to the documentation table of contents

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