Bump wp-phpunit/wp-phpunit from 6.7.1 to 6.7.2 (#373)

Bumps [wp-phpunit/wp-phpunit](https://github.com/wp-phpunit/wp-phpunit) from 6.7.1 to 6.7.2.
- [Commits](wp-phpunit/wp-phpunit@6.7.1...6.7.2)

---
updated-dependencies:
- dependency-name: wp-phpunit/wp-phpunit
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>