upgrade simple json

Author: blinky3713

bower.json

@@ -22,7 +22,7 @@
     "purescript-console": "^3.0.0",
     "purescript-modules": "^3.0.0",
     "purescript-foreign": "^4.0.1",
-    "purescript-simple-json": "^2.0.1",
+    "purescript-simple-json": "^3.0.0",
     "purescript-sets": "^3.2.0",
     "purescript-bytestrings": "^6.0.0",
     "purescript-spec": "^2.0.0",