Revert "Both pull_request and pull_request_target"

This reverts commit 4b14b96.

Author: msabramo

.github/workflows/e2e_tests.yml

@@ -3,8 +3,6 @@ name: Playwright Tests
 on:
   push:
     branches: [main]
-  pull_request:
-    branches: [main]
   pull_request_target:
     branches: [main]