chore(deps): bump peter-evans/enable-pull-request-automerge from 2 to 3

Bumps [peter-evans/enable-pull-request-automerge](https://github.com/peter-evans/enable-pull-request-automerge) from 2 to 3.
- [Release notes](https://github.com/peter-evans/enable-pull-request-automerge/releases)
- [Commits](peter-evans/enable-pull-request-automerge@v2...v3)

---
updated-dependencies:
- dependency-name: peter-evans/enable-pull-request-automerge
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/nightly.yml

@@ -62,7 +62,7 @@ jobs:
             ${{ steps.update-schema.outputs.output }}
             ```
 
-      - uses: peter-evans/enable-pull-request-automerge@v2
+      - uses: peter-evans/enable-pull-request-automerge@v3
         if: steps.cpr.outputs.pull-request-number > 0
         with:
           token: ${{ steps.generate-token.outputs.token }}