Fix indentation and formatting in tests.yml

Author: goruha

.github/workflows/tests.yml

@@ -9,7 +9,8 @@ on:
       sha:
         description: "The sha of the commit that triggered the workflow run"
         required: false
-        type: "string"  pull_request:
+        type: "string"  
+  pull_request:
   push:
     branches:
       - main