chore(deps): update leafo/gh-actions-luarocks action to v5 (#38)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -57,7 +57,7 @@ jobs:
           luaVersion: "luajit-openresty"
 
       - name: luarocks
-        uses: leafo/gh-actions-luarocks@v4
+        uses: leafo/gh-actions-luarocks@v5
 
       - name: run test
         shell: bash