Bump mrkkrp/ormolu-action from 15 to 16

Bumps [mrkkrp/ormolu-action](https://github.com/mrkkrp/ormolu-action) from 15 to 16.
- [Release notes](https://github.com/mrkkrp/ormolu-action/releases)
- [Changelog](https://github.com/haskell-actions/run-ormolu/blob/master/CHANGELOG.md)
- [Commits](haskell-actions/run-ormolu@v15...v16)

---
updated-dependencies:
- dependency-name: mrkkrp/ormolu-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: mrkkrp/ormolu-action@v15
+      - uses: mrkkrp/ormolu-action@v16
         with:
           version: "0.7.1.0"