fix: add GITLEAKS_LICENSE secret to gitleaks action

The gitleaks action was failing because it couldn't access the GITLEAKS_LICENSE secret that was added at the organization level. This adds the required environment variable mapping to make the license available to the action.

Author: kzndotsh

.github/workflows/security.yml

@@ -45,6 +45,7 @@ jobs:
         uses: gitleaks/gitleaks-action@v2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITLEAKS_LICENSE: ${{ secrets.GITLEAKS_LICENSE }}
 
       - name: Upload Gitleaks results
         if: always()