ghc_json update

Author: murtaza-swati

public/version-aliases/ghc.json

@@ -179,6 +179,7 @@
   "9.2.2": "9.2.2",
   "9.2.3": "9.2.3",
   "9.4.1-alpha1": "9.4.1-alpha1",
-  "9.4": "9.4.1-alpha2",
-  "9.4.1-alpha2": "9.4.1-alpha2"
+  "9.4": "9.4.1-alpha3",
+  "9.4.1-alpha2": "9.4.1-alpha2",
+  "9.4.1-alpha3": "9.4.1-alpha3"
 }