build(deps-dev): bump eslint from 7.19.0 to 7.20.0

Bumps [eslint](https://github.com/eslint/eslint) from 7.19.0 to 7.20.0.
- [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/v7.19.0...v7.20.0)

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

package.json

@@ -31,7 +31,7 @@
         "@vue/cli-service": "^4.5.11",
         "@vue/compiler-sfc": "^3.0.5",
         "babel-eslint": "^10.1.0",
-        "eslint": "^7.19.0",
+        "eslint": "^7.20.0",
         "eslint-plugin-vue": "^7.6.0"
     },
     "eslintConfig": {