[DEVOPS-10128] Replace TruffleHog with Gitleaks for secret scanning

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: abacchilb

.github/workflows/secrets_scan.yml

@@ -4,14 +4,5 @@ on:
   pull_request:
 
 jobs:
-  TruffleHog:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout code
-      uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
-    - name: Secret Scanning
-      uses: trufflesecurity/trufflehog@main
-      with:
-        extra_args: --only-verified
+  gitleaks:
+    uses: Labelbox/reusable-workflows/.github/workflows/Secret-Scan.yml@main