chore(deps): bump peter-evans/create-pull-request from 4.1.2 to 4.2.0

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 4.1.2 to 4.2.0.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v4.1.2...v4.2.0)

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

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

.github/workflows/upgrade-flakes.yml

@@ -18,7 +18,7 @@ jobs:
         run: nix flake update
       - name: Create Pull Request
         id: cpr
-        uses: peter-evans/create-pull-request@v4.1.2
+        uses: peter-evans/create-pull-request@v4.2.0
         with:
           commit-message: '❄ update(flake): bump flake inputs'
           committer: GitHub <[email protected]>