Bump eslint from 6.2.2 to 6.6.0

Bumps [eslint](https://github.com/eslint/eslint) from 6.2.2 to 6.6.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v6.2.2...v6.6.0)

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

package.json

@@ -77,7 +77,7 @@
     "electron-builder": "^21.2.0",
     "enzyme": "^3.10.0",
     "enzyme-adapter-react-16": "^1.14.0",
-    "eslint": "^6.2.2",
+    "eslint": "^6.6.0",
     "eslint-config-airbnb": "^18.0.1",
     "eslint-config-prettier": "^6.1.0",
     "eslint-import-resolver-webpack": "^0.11.1",