Changed pull_request_target to pull_request (#916)

Author: arpit-jn

.github/workflows/semgrep.yml

@@ -2,7 +2,7 @@ name: Semgrep
 
 on:
   merge_group:
-  pull_request_target:
+  pull_request:
     types:
       - opened
       - synchronize
@@ -20,16 +20,7 @@ concurrency:
   cancel-in-progress: ${{ github.ref != 'refs/heads/5.x' }}
 
 jobs:
-  authorize:
-    name: Authorize
-    environment: ${{ github.actor != 'dependabot[bot]' && github.event_name == 'pull_request_target' && github.event.pull_request.head.repo.full_name != github.repository && 'external' || 'internal' }}
-    runs-on: ubuntu-latest
-    steps:
-      - run: true
-
   check:
-    needs: authorize
-
     name: Check for Vulnerabilities
     runs-on: ubuntu-latest