💚 enhance CI workflow with permissions and concurrency settings

Author: techouse

.github/workflows/test.yml

@@ -6,6 +6,13 @@ on:
   pull_request:
     branches: [ main ]
   workflow_dispatch:
+    
+permissions:
+  contents: read
+
+concurrency:
+  group: test-${{ github.ref }}
+  cancel-in-progress: true
 
 env:
   DOTNET_NOLOGO: true