Bump pantheon-systems/pantheon-wp-coding-standards from 2.0.1 to 2.0.3

Bumps [pantheon-systems/pantheon-wp-coding-standards](https://github.com/pantheon-systems/Pantheon-WP-Coding-Standards) from 2.0.1 to 2.0.3.
- [Release notes](https://github.com/pantheon-systems/Pantheon-WP-Coding-Standards/releases)
- [Commits](pantheon-systems/Pantheon-WP-Coding-Standards@2.0.1...2.0.3)

---
updated-dependencies:
- dependency-name: pantheon-systems/pantheon-wp-coding-standards
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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