fix(deps): update dependency eslint-plugin-flowtype to ^3.4.2

Author: renovate-bot

package-lock.json

@@ -39,7 +39,7 @@
   "dependencies": {
     "babel-eslint": "^9.0.0",
     "eslint-config-prettier": "^4.0.0",
-    "eslint-plugin-flowtype": "^3.4.1",
+    "eslint-plugin-flowtype": "^3.4.2",
     "eslint-plugin-import": "^2.16.0",
     "eslint-plugin-jsx-a11y": "6.2.1",
     "eslint-plugin-node": "^8.0.1",