chore(deps): update dependency eslint-config-prettier to v3 (#37)

Author: renovate[bot]

packages/google-cloud-redis/package.json

@@ -53,7 +53,7 @@
     "async": "^2.6.0",
     "codecov": "^3.0.1",
     "eslint": "^5.0.0",
-    "eslint-config-prettier": "^2.9.0",
+    "eslint-config-prettier": "^3.0.0",
     "eslint-plugin-node": "^7.0.0",
     "eslint-plugin-prettier": "^2.6.0",
     "extend": "^3.0.1",