Add GitHub Sponsors to Readme

Version updated for JamesIves/github-sponsors-readme-action to version v1.4.2.

• This action is used across all versions by 7 repositories.

Go to the GitHub Marketplace to find the latest changes.

Release notes

What’s Changed

Security 🔒

• fix: 🔒 Resolves a markdown injection vulnerability. Special thanks to @Nicocha30 for spotting this. ❤️

Full Changelog: https://github.com/JamesIves/github-sponsors-readme-action/compare/v1...v1.4.2

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