Bump peter-evans/create-pull-request from 4 to 5

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 4 to 5.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v4...v5)

---
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]>

.github/workflows/libsodium.yaml

@@ -142,7 +142,7 @@ jobs:
           dart pub global run cider release
         working-directory: packages/sodium_libs
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v4
+        uses: peter-evans/create-pull-request@v5
         with:
           commit-message: Update last-modified.txt
           branch: last-modified-${{ github.run_id }}