build(deps): bump peter-evans/create-pull-request in the actions group (#1048)

Bumps the actions group with 1 update: [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request).


Updates `peter-evans/create-pull-request` from 6.0.5 to 6.1.0
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@6d6857d...c5a7806)

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

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

Author: dependabot[bot]

.github/workflows/pin-requirements.yml

@@ -125,7 +125,7 @@ jobs:
           git push -f origin "origin/main:${SIGSTORE_PIN_REQUIREMENTS_BRANCH}"
 
       - name: Open pull request
-        uses: peter-evans/create-pull-request@6d6857d36972b65feb161a90e484f2984215f83e # v6.0.5
+        uses: peter-evans/create-pull-request@c5a7806660adbe173f04e3e038b0ccdcd758773c # v6.1.0
         with:
           title: |
             Update pinned requirements for ${{ env.SIGSTORE_RELEASE_TAG }}