Update dev-hato/actions-update-gitleaks action to v0.0.84 (#1218)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/update-gitleaks.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Install packages
         if: github.event_name != 'pull_request' || github.event.action != 'closed'
         run: npm ci
-      - uses: dev-hato/actions-update-gitleaks@a776495b48591a4288a30315b54e33858970a67e # v0.0.83
+      - uses: dev-hato/actions-update-gitleaks@091c34de599960bb32f05f5087bb2eb6ba875af8 # v0.0.84
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
 concurrency: