chore(deps): bump leafo/gh-actions-luarocks from 4 to 5

Bumps [leafo/gh-actions-luarocks](https://github.com/leafo/gh-actions-luarocks) from 4 to 5.
- [Release notes](https://github.com/leafo/gh-actions-luarocks/releases)
- [Commits](leafo/gh-actions-luarocks@v4...v5)

---
updated-dependencies:
- dependency-name: leafo/gh-actions-luarocks
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
         with:
           luaVersion: ${{ matrix.lua_version }}
 
-      - uses: leafo/gh-actions-luarocks@v4
+      - uses: leafo/gh-actions-luarocks@v5
 
       - run: luarocks install luacheck 1.1.1