⬆️ Bump eslint from 5.16.0 to 7.28.0

Bumps [eslint](https://github.com/eslint/eslint) from 5.16.0 to 7.28.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v5.16.0...v7.28.0)

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

package.json

@@ -38,7 +38,7 @@
     "babel-preset-node8": "^1.2.0",
     "chai": "^4.2.0",
     "coveralls": "^3.0.2",
-    "eslint": "^5.9.0",
+    "eslint": "^7.28.0",
     "eslint-config-standard": "^12.0.0",
     "eslint-plugin-import": "^2.14.0",
     "eslint-plugin-node": "^8.0.0",