Create main.yml to run tests as a workflow

.github/workflows/main.yml

@@ -0,0 +1,17 @@
+name: Run tests
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  Run-tests-on-Ubuntu:
+    name: Run tests on Ubuntu
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: leafo/gh-actions-lua@v10
+        with:
+          luaVersion: "5.1.5"
+      - run: ./test.sh