fix(package): update styled-jsx to version 0.5.4 (#1002)

https://greenkeeper.io/

package.json

@@ -78,7 +78,7 @@
     "send": "0.14.1",
     "source-map-support": "0.4.11",
     "strip-ansi": "3.0.1",
-    "styled-jsx": "0.5.3",
+    "styled-jsx": "0.5.4",
     "url": "0.11.0",
     "uuid": "3.0.1",
     "webpack": "2.2.1",