Update dependency eslint-plugin-flowtype to v3.8.1

Author: renovate-bot

package.json

@@ -104,7 +104,7 @@
     "eslint-config-airbnb": "17.1.0",
     "eslint-config-prettier": "4.1.0",
     "eslint-config-react-app": "3.0.8",
-    "eslint-plugin-flowtype": "3.4.2",
+    "eslint-plugin-flowtype": "3.8.1",
     "eslint-plugin-import": "2.16.0",
     "eslint-plugin-json": "1.4.0",
     "eslint-plugin-jsx-a11y": "6.2.1",

yarn.lock

@@ -3617,10 +3617,10 @@ eslint-module-utils@^2.3.0:
     debug "^2.6.8"
     pkg-dir "^2.0.0"
 
-eslint-plugin-flowtype@3.4.2:
-  version "3.4.2"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-3.4.2.tgz#55475e10b05fd714d60bceebbbed596cb8706b16"
-  integrity sha512-sv6O6fiN3dIwhU4qRxfcyIpbKGVvsxwIQ6vgBLudpQKjH1rEyEFEOjGzGEUBTQP9J8LdTZm37OjiqZ0ZeFOa6g==
+eslint-plugin-flowtype@3.8.1:
+  version "3.8.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-3.8.1.tgz#fefbc160b8f55c0bc0201236471637ad47ca6886"
+  integrity sha512-7ye/CCdTzytOu54Y1dUed/ejcIPMe0eSlxhfPIhOv2DCMvLMbwYGagEYfEuJ1ylMhkt8Z+rt8VtJXniNwC3hRQ==
   dependencies:
     lodash "^4.17.11"