Bump pantheon-systems/wpunit-helpers from 2.0.2 to 2.0.3 (#108)

Bumps [pantheon-systems/wpunit-helpers](https://github.com/pantheon-systems/wpunit-helpers) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/pantheon-systems/wpunit-helpers/releases)
- [Commits](pantheon-systems/wpunit-helpers@v2.0.2...v2.0.3)

---
updated-dependencies:
- dependency-name: pantheon-systems/wpunit-helpers
  dependency-version: 2.0.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]