Update renovatebot/github-action action to v46.1.21 (#274)

Co-authored-by: Renovate Bot <renovate@whitesourcesoftware.com>

Author: radical-bot

.github/workflows/update-dependencies.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v7.0.1
       - name: Self-hosted Renovate
-        uses: renovatebot/github-action@v46.1.20
+        uses: renovatebot/github-action@v46.1.21
         with:
           token: ${{ secrets.RENOVATE_TOKEN }}
           configurationFile: .github/renovate.json