chore(deps): bump reviewdog/action-shellcheck from 1.12 to 1.13

Bumps [reviewdog/action-shellcheck](https://github.com/reviewdog/action-shellcheck) from 1.12 to 1.13.
- [Release notes](https://github.com/reviewdog/action-shellcheck/releases)
- [Commits](reviewdog/action-shellcheck@v1.12...v1.13)

---
updated-dependencies:
- dependency-name: reviewdog/action-shellcheck
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pr.yml

@@ -7,7 +7,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2.4.0
       - name: shellcheck
-        uses: reviewdog/action-shellcheck@v1.12
+        uses: reviewdog/action-shellcheck@v1.13
         with:
           github_token: ${{ secrets.github_token }}
           path: 'commit-msg'