build(deps): bump peter-evans/create-pull-request from 7.0.7 to 7.0.8

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 7.0.7 to 7.0.8.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](https://github.com/peter-evans/create-pull-request/compare/dd2324fc52d5d43c699a5636bcf19fceaa70c284...271a8d0340265f705b14b6d32b9829c1cb33d45e)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/docs-release.yml

@@ -77,7 +77,7 @@ jobs:
           VENDOR_MODULE: github.com/docker/buildx@${{ env.RELEASE_NAME }}
       -
         name: Create PR on docs repo
-        uses: peter-evans/create-pull-request@dd2324fc52d5d43c699a5636bcf19fceaa70c284  # v7.0.7
+        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e  # v7.0.8
         with:
           token: ${{ secrets.GHPAT_DOCS_DISPATCH }}
           push-to-fork: docker-tools-robot/docker.github.io