chore(deps): update dependency eslint-config-prettier to v3 (#295)

Author: renovate[bot]

handwritten/spanner/package.json

@@ -96,7 +96,7 @@
     "concat-stream": "^1.6.2",
     "dedent": "^0.7.0",
     "eslint": "^5.0.1",
-    "eslint-config-prettier": "^2.9.0",
+    "eslint-config-prettier": "^3.0.0",
     "eslint-plugin-node": "^7.0.0",
     "eslint-plugin-prettier": "^2.6.1",
     "ink-docstrap": "^1.3.2",