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

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
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/nixpkgs.yml

@@ -25,7 +25,7 @@ jobs:
  echo "create_pr=true" >> "$GITHUB_OUTPUT"
  fi
  - name: Create PR if required
- uses: peter-evans/create-pull-request@6d6857d36972b65feb161a90e484f2984215f83e # v6.0.5
+ uses: peter-evans/create-pull-request@c5a7806660adbe173f04e3e038b0ccdcd758773c # v6.1.0
  if: ${{ steps.create_pr.outputs.create_pr == 'true' }}
  with:
  commit-message: Update nixpkgs