Update dependency eslint-config-prettier to v6.15.0

Author: renovate-bot

package.json

@@ -36,7 +36,7 @@
     "husky": "4.2.5",
     "prettier": "2.0.4",
     "eslint": "6.8.0",
-    "eslint-config-prettier": "6.10.1",
+    "eslint-config-prettier": "6.15.0",
     "eslint-config-standard": "14.1.1",
     "eslint-plugin-import": "2.20.2",
     "eslint-plugin-node": "11.1.0",