Bump peter-evans/create-pull-request from 6 to 7 (dmlc#10863)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 6 to 7.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v6...v7)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/update_rapids.yml

@@ -32,7 +32,7 @@ jobs:
       run: |
         bash tests/buildkite/update-rapids.sh
     - name: Create Pull Request
-      uses: peter-evans/create-pull-request@v6
+      uses: peter-evans/create-pull-request@v7
       if: github.ref == 'refs/heads/master'
       with:
         add-paths: |