Bump frequenz-floss/dependabot-auto-approve

Bumps [frequenz-floss/dependabot-auto-approve](https://github.com/frequenz-floss/dependabot-auto-approve) from 005e52004f5d5c6af2f81b89ec25e5cf6f3dfd77 to e21261bf8fcc98c6be6d93f3cd44e54bf1dd710e.
- [Commits](frequenz-floss/dependabot-auto-approve@005e520...e21261b)

---
updated-dependencies:
- dependency-name: frequenz-floss/dependabot-auto-approve
  dependency-version: e21261bf8fcc98c6be6d93f3cd44e54bf1dd710e
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/auto-dependabot.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.actor == 'dependabot[bot]'
     steps:
-      - uses: frequenz-floss/dependabot-auto-approve@005e52004f5d5c6af2f81b89ec25e5cf6f3dfd77 # v1.3.0
+      - uses: frequenz-floss/dependabot-auto-approve@e21261bf8fcc98c6be6d93f3cd44e54bf1dd710e # v1.3.0
         with:
           dependency-type: 'all'
           auto-merge: 'true'