build(deps): bump redhat-plumbers-in-action/differential-shellcheck

Bumps [redhat-plumbers-in-action/differential-shellcheck](https://github.com/redhat-plumbers-in-action/differential-shellcheck) from 5.1.1 to 5.1.2.
- [Release notes](https://github.com/redhat-plumbers-in-action/differential-shellcheck/releases)
- [Changelog](https://github.com/redhat-plumbers-in-action/differential-shellcheck/blob/main/docs/CHANGELOG.md)
- [Commits](redhat-plumbers-in-action/differential-shellcheck@c150708...52bab0c)

---
updated-dependencies:
- dependency-name: redhat-plumbers-in-action/differential-shellcheck
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/differential-shellcheck.yml

@@ -23,6 +23,6 @@ jobs:
  fetch-depth: 0
 
  - name: Differential ShellCheck
- uses: redhat-plumbers-in-action/differential-shellcheck@c15070885a82a2c93db8a765d332c38c50dde8b3
+ uses: redhat-plumbers-in-action/differential-shellcheck@52bab0caa5249d6acd8bcd5bc7a68e69ac9319f9
  with:
  token: ${{ secrets.GITHUB_TOKEN }}