chore(package): update eslint-plugin-flowtype to version 2.34.0

Author: greenkeeper[bot]

package.json

@@ -72,7 +72,7 @@
     "coveralls": "2.13.1",
     "eslint": "3.19.0",
     "eslint-plugin-babel": "4.1.1",
-    "eslint-plugin-flowtype": "2.33.0",
+    "eslint-plugin-flowtype": "2.34.0",
     "flow-bin": "0.47.0",
     "isparta": "4.0.0",
     "mocha": "3.4.2",