Remove testing on main

Author: adamspd

.github/workflows/tests.yml

@@ -5,9 +5,9 @@ name: Spam Detection Testing
 
 on:
   push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
+    branches-ignore:
+      - 'main'
+  workflow_dispatch:
 
 permissions:
   contents: read