Bump eslint-plugin-jsx-a11y version

Author: bondz

packages/eslint-config-react-app/package.json

@@ -15,7 +15,7 @@
     "eslint": "^3.8.1",
     "eslint-plugin-flowtype": "^2.21.0",
     "eslint-plugin-import": "^2.0.1",
-    "eslint-plugin-jsx-a11y": "^2.2.3",
+    "eslint-plugin-jsx-a11y": "^3.0.2",
     "eslint-plugin-react": "^6.4.1"
   }
 }