chore(deps): bump frequenz-floss/dependabot-auto-approve

Bumps [frequenz-floss/dependabot-auto-approve](https://github.com/frequenz-floss/dependabot-auto-approve) from 1.3.2 to 1.5.0.
- [Release notes](https://github.com/frequenz-floss/dependabot-auto-approve/releases)
- [Commits](frequenz-floss/dependabot-auto-approve@3cad5f4...e943399)

---
updated-dependencies:
- dependency-name: frequenz-floss/dependabot-auto-approve
  dependency-version: 1.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/auto-dependabot.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: Auto-merge Dependabot PR
-        uses: frequenz-floss/dependabot-auto-approve@3cad5f42e79296505473325ac6636be897c8b8a1  # v1.3.2
+        uses: frequenz-floss/dependabot-auto-approve@e943399cc9d76fbb6d7faae446cd57301d110165  # v1.5.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           dependency-type: 'all'