Bump ymirapp/wordpress-plugin from 1.20.2 to 1.21.0

Bumps [ymirapp/wordpress-plugin](https://github.com/ymirapp/wordpress-plugin) from 1.20.2 to 1.21.0.
- [Changelog](https://github.com/ymirapp/wordpress-plugin/blob/main/CHANGELOG.md)
- [Commits](ymirapp/wordpress-plugin@v1.20.2...v1.21.0)

---
updated-dependencies:
- dependency-name: ymirapp/wordpress-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>