chore(deps-dev): bump eslint-config-prettier from 4.3.0 to 6.11.0

Bumps [eslint-config-prettier](https://github.com/prettier/eslint-config-prettier) from 4.3.0 to 6.11.0.
- [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@v4.3.0...v6.11.0)

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

package.json

@@ -75,7 +75,7 @@
     "chai": "^4.2.0",
     "eslint": "^5.10.0",
     "eslint-config-egg": "^7.1.0",
-    "eslint-config-prettier": "^4.3.0",
+    "eslint-config-prettier": "^6.11.0",
     "eslint-plugin-html": "^5.0.0",
     "gh-pages": "^3.1.0",
     "git-contributor": "~1.0.8",