fix: add filter-by-commitish option to release drafter config

[jescalada]

Adding the missing option since release/1.1 is failing to generate the 1.1.1 release

[github-actions]

🔒 Automated Security Review

Security Review - No Issues Found

This PR adds a configuration option filter-by-commitish: true to the Release Drafter configuration file. No security concerns identified - this is a standard configuration change for release automation tooling.

[github-actions]

Thanks for the contribution! I noticed a few things that need attention:

Description clarity: The current description is quite brief. Could you provide more details about:

• What the filter-by-commitish option does
• Why it's needed for the release process
• What specific behavior changes with this addition

Issue link: I don't see a linked issue in the description. Per our contributing guidelines, please either:

• Link an existing issue using "Fixes #N", "Closes #N", or "Resolves #N"
• Or create a new issue describing the problem this PR solves

Contributing guidelines: According to our CONTRIBUTING.md, the first step should be to "Check for existing issues: Search open issues before starting work. If none exists, create one describing the change."

A more detailed description will help reviewers understand the context and ensure this change aligns with the project's goals.