feat(client-datazone): Raise hard limit of authorized principals per SubscriptionTarget from 10 to 20.

Author: awstools

codegen/sdk-codegen/aws-models/datazone.json

@@ -1826,7 +1826,7 @@
       "traits": {
         "smithy.api#length": {
           "min": 1,
-          "max": 10
+          "max": 20
         }
       }
     },