build(deps-dev): 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

@@ -32,7 +32,7 @@
         "@vue/cli-service": "^4.5.13",
         "@vue/compiler-sfc": "^3.1.5",
         "babel-eslint": "^10.1.0",
-        "eslint": "^7.30.0",
+        "eslint": "^7.31.0",
         "eslint-plugin-vue": "^7.13.0"
     },
     "eslintConfig": {