Bump eslint-config-prettier from 6.1.0 to 6.9.0

Bumps [eslint-config-prettier](https://github.com/prettier/eslint-config-prettier) from 6.1.0 to 6.9.0.
- [Release notes](https://github.com/prettier/eslint-config-prettier/releases)
- [Changelog](https://github.com/prettier/eslint-config-prettier/blob/master/CHANGELOG.md)
- [Commits](prettier/eslint-config-prettier@v6.1.0...v6.9.0)

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

package.json

@@ -79,7 +79,7 @@
     "enzyme-adapter-react-16": "^1.14.0",
     "eslint": "^6.2.2",
     "eslint-config-airbnb": "^18.0.1",
-    "eslint-config-prettier": "^6.1.0",
+    "eslint-config-prettier": "^6.9.0",
     "eslint-import-resolver-webpack": "^0.11.1",
     "eslint-loader": "^3.0.0",
     "eslint-plugin-import": "^2.18.2",