Bump eslint from 7.30.0 to 7.31.0

Bumps [eslint](https://github.com/eslint/eslint) from 7.30.0 to 7.31.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v7.30.0...v7.31.0)

---
updated-dependencies:
- dependency-name: eslint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -48,7 +48,7 @@
     "@typescript-eslint/eslint-plugin": "^4.27.0",
     "@typescript-eslint/parser": "^4.27.0",
     "chai": "^4.3.4",
-    "eslint": "^7.30.0",
+    "eslint": "^7.31.0",
     "eslint-config-airbnb-base": "^14.2.1",
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-import": "^2.23.4",