chore(package): update eslint-plugin-jsx-a11y to version 2.2.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -30,7 +30,7 @@
     "coveralls": "2.11.12",
     "eslint-config-airbnb": "10.0.1",
     "eslint-plugin-import": "^1.9.2",
-    "eslint-plugin-jsx-a11y": "2.2.0",
+    "eslint-plugin-jsx-a11y": "2.2.1",
     "eslint-plugin-react": "6.1.2",
     "istanbul": "0.4.4",
     "mocha": "3.0.2"