Bump haskell-actions/run-ormolu from 15 to 16

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

---
updated-dependencies:
- dependency-name: haskell-actions/run-ormolu
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -74,7 +74,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: haskell-actions/run-ormolu@v15
+      - uses: haskell-actions/run-ormolu@v16
   release:
     if: ${{ github.event_name == 'release' }}
     name: Release