Bump purescript-argonaut-core

Author: garyb

bower.json

@@ -24,7 +24,7 @@
   ],
   "dependencies": {
     "purescript-aff": "^5.0.0",
-    "purescript-argonaut-core": "^4.0.0",
+    "purescript-argonaut-core": "^5.0.0",
     "purescript-arraybuffer-types": "^2.0.0",
     "purescript-web-xhr": "^3.0.0",
     "purescript-foreign": "^5.0.0",