chore(deps): update dependency eslint-config-prettier to v4 (googleapis#238)

renovate[bot] · JustinBeckwith · commit 404d8d05d810 · 2019-01-26T10:40:22.000-08:00
diff --git a/package.json b/package.json
@@ -43,7 +43,7 @@
     "assert-rejects": "^1.0.0",
     "codecov": "^3.0.0",
     "eslint": "^5.0.0",
-    "eslint-config-prettier": "^3.0.0",
+    "eslint-config-prettier": "^4.0.0",
     "eslint-plugin-node": "^8.0.0",
     "eslint-plugin-prettier": "^3.0.0",
     "gts": "^0.9.0",
