Update resource list

Author: Autogenerator Pipeline

generator/resources.json

@@ -3170,7 +3170,8 @@
   ],
   "Microsoft.KeyVault/vaults/keys": [
     "2019-09-01",
-    "2020-04-01-preview"
+    "2020-04-01-preview",
+    "2021-04-01-preview"
   ],
   "Microsoft.KeyVault/vaults/privateEndpointConnections": [
     "2018-02-14",
@@ -5404,6 +5405,9 @@
     "2017-10-01",
     "2021-01-01"
   ],
+  "Microsoft.PowerPlatform/accounts": [
+    "2020-10-30-preview"
+  ],
   "Microsoft.PowerPlatform/enterprisePolicies": [
     "2020-10-30-preview"
   ],