chore(deps): bump mshick/add-pr-comment from 2 to 3

Bumps [mshick/add-pr-comment](https://github.com/mshick/add-pr-comment) from 2 to 3.
- [Release notes](https://github.com/mshick/add-pr-comment/releases)
- [Changelog](https://github.com/mshick/add-pr-comment/blob/main/CHANGELOG.md)
- [Commits](mshick/add-pr-comment@v2...v3)

---
updated-dependencies:
- dependency-name: mshick/add-pr-comment
  dependency-version: '3'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build-test.yaml

@@ -566,7 +566,7 @@ jobs:
           addon_package_url: ${{ steps.addon-generate.outputs.addon_package_url }}
           testgrid_api_token: ${{ secrets.TESTGRID_PROD_API_TOKEN }}
       - name: comment testgrid url
-        uses: mshick/add-pr-comment@v2
+        uses: mshick/add-pr-comment@v3
         with:
           message: ${{ steps.addon-test.outputs.testgrid_run_message }}
           repo-token: ${{ secrets.GITHUB_TOKEN }}