tests: Use upstream provided GH Action for Luacheck

.github/workflows/luacheck.yml

@@ -0,0 +1,13 @@
+name: Luacheck
+
+on: [ push, pull_request ]
+
+jobs:
+
+  luacheck:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Luacheck
+        uses: lunarmodules/luacheck@v1

.github/workflows/test.yml

@@ -18,27 +18,6 @@ jobs:
       run: |
         shellcheck ./configure
 
-  ##############################################################################
-  LuaLint:
-    runs-on: "ubuntu-latest"
-
-    steps:
-    - uses: actions/checkout@master
-
-    - uses: leafo/gh-actions-lua@v8.0.0
-      with:
-        luaVersion: "5.4"
-
-    - uses: leafo/gh-actions-luarocks@v4.0.0
-
-    - name: Prep
-      run: |
-        luarocks install luacheck
-
-    - name: Luacheck
-      run: |
-        luacheck .
-
   ##############################################################################
   TestMatrix:
     strategy:
@@ -60,13 +39,8 @@ jobs:
       run: |
         luarocks install busted
         luarocks install cluacov
-        luarocks install luacheck
         luarocks install busted-htest
 
-    - name: Luacheck
-      run: |
-        luacheck .
-
     - name: Unit Test
       run: |
         eval $(luarocks path)

README.md

@@ -3,6 +3,7 @@
 A package manager for Lua modules.
 
 [![Build Status](https://github.com/luarocks/luarocks/actions/workflows/test.yml/badge.svg)](https://github.com/luarocks/luarocks/actions)
+[![Lint Status](https://github.com/luarocks/luarocks/actions/workflows/Luacheck/badge.svg)](https://github.com/luarocks/luarocks/actions/workflows/luacheck.yml)
 [![Build Status](https://ci.appveyor.com/api/projects/status/4x4630tcf64da48i/branch/master?svg=true)](https://ci.appveyor.com/project/hishamhm/luarocks/branch/master)
 [![Coverage Status](https://codecov.io/gh/luarocks/luarocks/coverage.svg?branch=master)](https://codecov.io/gh/luarocks/luarocks/branch/master)
 [![Join the chat at https://gitter.im/luarocks/luarocks](https://badges.gitter.im/luarocks/luarocks.svg)](https://gitter.im/luarocks/luarocks)