Move Gitleaks to a Weekly Scan (#119)

Author: Tyler Titsworth

.github/workflows/gitleaks.yaml

@@ -52,3 +52,18 @@ jobs:
       group_dir: ${{ matrix.group }}
       ref: main
     secrets: inherit
+  scan:
+    name: gitleaks
+    runs-on: ubuntu-latest
+    steps:
+    - name: Harden Runner
+      uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      with:
+        fetch-depth: 0
+    - uses: gitleaks/gitleaks-action@44c470ffc35caa8b1eb3e8012ca53c2f9bea4eb5 # v2.3.6
+      env:
+        GITHUB_TOKEN: ${{ secrets.ACTION_TOKEN }}
+        GITLEAKS_LICENSE: ${{ secrets.GITLEAKS_LICENSE}}