Update dev-hato/actions-update-gitleaks action to v0.0.81

Author: renovate[bot]

.github/workflows/update-gitleaks.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
-      - uses: dev-hato/actions-update-gitleaks@f2dfdc44ba854cf22f8c0041b60aca707347d1ca # v0.0.80
+      - uses: dev-hato/actions-update-gitleaks@a1fa480c98add29b8e018c4e4bcd541d45766433 # v0.0.81
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
 concurrency: