Bump peter-evans/create-pull-request

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 7 to 8.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v7...v8)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/actions/create-auto-merged-pull-request/action.yml

@@ -35,7 +35,7 @@ runs:
 
     - name: Create Pull Request
       id: create-pull-request
-      uses: peter-evans/create-pull-request@v7
+      uses: peter-evans/create-pull-request@v8
       with:
         token: ${{ steps.app-token.outputs.token }}
         commit-message: | # The blank line is important.