Actions: add luacheck linter

.github/workflows/test_scripting.yml

@@ -1,15 +1,17 @@
-name: test scripting docs
+name: test scripting
 
 on:
   push:
     paths: # only run for scripting changes
       - 'libraries/AP_Scripting/tests/docs_check.py'
       - 'libraries/AP_Scripting/generator/**'
+      - '**.lua'
 
   pull_request:
     paths: # only run for scripting changes
       - 'libraries/AP_Scripting/tests/docs_check.py'
       - 'libraries/AP_Scripting/generator/**'
+      - '**.lua'
 
   workflow_dispatch:
 
@@ -18,7 +20,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  test-scripting-docs:
+  test-scripting:
     runs-on: ubuntu-20.04
     container: ardupilot/ardupilot-dev-base:latest
     steps:
@@ -27,6 +29,13 @@ jobs:
         with:
           submodules: 'recursive'
 
+      - name: Lua Linter
+        shell: bash
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install lua-check
+          ./Tools/scripts/run_luacheck.sh
+
       - name: copy docs
         run: |
           PATH="/github/home/.local/bin:$PATH"