CodeGen from PR 19594 in Azure/azure-rest-api-specs

Merge 63cc8bcd607dfb83f15ecfc25487471f835b4f7c into f4e7a1c99eff175286c3313ec875f79e4142ac1a

Author: SDKAuto

schemas/2021-05-01/Microsoft.DBforMySQL.json

@@ -483,10 +483,12 @@
       "properties": {
         "delegatedSubnetResourceId": {
           "type": "string",
+          "format": "arm-id",
           "description": "Delegated subnet resource id used to setup vnet for a server."
         },
         "privateDnsZoneResourceId": {
           "type": "string",
+          "format": "arm-id",
           "description": "Private DNS zone resource id."
         }
       },