CodeGen from PR 15786 in Azure/azure-rest-api-specs

sql always encrypted add uami support (#15786)

Author: SDKAuto

schemas/2018-06-01/Microsoft.DataFactory.json

@@ -25966,7 +25966,8 @@
               "type": "string",
               "enum": [
                 "ServicePrincipal",
-                "ManagedIdentity"
+                "ManagedIdentity",
+                "UserAssignedManagedIdentity"
               ]
             },
             {
@@ -25975,6 +25976,17 @@
           ],
           "description": "Sql always encrypted AKV authentication type. Type: string (or Expression with resultType string)."
         },
+        "credential": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/CredentialReference"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Credential reference type."
+        },
         "servicePrincipalId": {
           "type": "object",
           "properties": {},