chore(deps-dev): bump johnpbloch/wordpress-core from 6.9.1 to 6.9.4

Bumps [johnpbloch/wordpress-core](https://github.com/johnpbloch/wordpress-core) from 6.9.1 to 6.9.4.
- [Commits](johnpbloch/wordpress-core@6.9.1...6.9.4)

---
updated-dependencies:
- dependency-name: johnpbloch/wordpress-core
  dependency-version: 6.9.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]