build(deps-dev): bump eslint-config-etherpad from 3.0.20 to 3.0.21 (#395

)

Bumps [eslint-config-etherpad](https://github.com/ether/eslint-config-etherpad) from 3.0.20 to 3.0.21.
- [Commits](ether/eslint-config-etherpad@v3.0.20...v3.0.21)

---
updated-dependencies:
- dependency-name: eslint-config-etherpad
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -50,7 +50,7 @@
     "@types/rethinkdb": "^2.3.17",
     "cli-table": "^0.3.11",
     "eslint": "^8.46.0",
-    "eslint-config-etherpad": "^3.0.20",
+    "eslint-config-etherpad": "^3.0.21",
     "mocha": "^10.2.0",
     "randexp": "^0.5.3",
     "typescript": "^4.9.5",