Update Hackage and Stackage

stackage-src.json

@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/input-output-hk/stackage.nix",
-  "rev": "c3207cd3fa46e4cdc9af3199a003c85ef26e2b18",
-  "date": "2019-09-15T01:02:22+00:00",
-  "sha256": "0ldw4ikf5maw601j8j7fgm00zzhq3q3a2ll0kmv23armf7a37zr7",
+  "rev": "09423737ab6ed48ff8ad517df5c70b4ed4e19202",
+  "date": "2019-09-16T01:03:27+00:00",
+  "sha256": "14i1b47lhw1giz5gbdswcrikglnmzdz1y2ysjaddhvrbnbamszdw",
   "fetchSubmodules": false
 }