Update sqlServer.json (#24140)

Author: tadelesh

specification/synapse/resource-manager/Microsoft.Synapse/stable/2021-06-01/sqlServer.json

@@ -1758,28 +1758,21 @@
           "type": "boolean",
           "x-ms-mutability": [
             "create",
-            "read"
+            "read",
+            "update"
           ]
         },
         "emailSubscriptionAdmins": {
           "description": "Specifies that the schedule scan notification will be is sent to the subscription administrators.",
           "default": true,
-          "type": "boolean",
-          "x-ms-mutability": [
-            "create",
-            "read"
-          ]
+          "type": "boolean"
         },
         "emails": {
           "description": "Specifies an array of e-mail addresses to which the scan notification is sent.",
           "type": "array",
           "items": {
             "type": "string"
-          },
-          "x-ms-mutability": [
-            "create",
-            "read"
-          ]
+          }
         }
       }
     },