[PostgreSQL] Fix S360 violations for postgresql flexible servers api version 2022-12-01 (#24062)

* Fix S360 - Allow sourceServerResourceId as one of the field allowed to be part of read operation, as this field is returned for replica servers

* Allow tenantId to be passed and returned for identity

* Update tenantId as read only property

* Fix S360 for replicaCapacity returned only in response but not set in PUT. Add missing sourceServerResourceId in response for replica operation

* Fix S360 breaking change in new version 2023-03-01-preview

Author: ambrahma

specification/postgresql/resource-manager/Microsoft.DBforPostgreSQL/preview/2023-03-01-preview/FlexibleServers.json

@@ -910,6 +910,11 @@
             "name": "IdentityType",
             "modelAsString": true
           }
+        },
+        "tenantId": {
+          "type": "string",
+          "description": "Tenant id of the server.",
+          "readOnly": true
         }
       },
       "required": [

specification/postgresql/resource-manager/Microsoft.DBforPostgreSQL/stable/2022-12-01/FlexibleServers.json

@@ -484,9 +484,10 @@
               }
             ]
           },
-          "description": "The source server resource ID to restore from. It's required when 'createMode' is 'PointInTimeRestore' or 'GeoRestore' or 'Replica'.",
+          "description": "The source server resource ID to restore from. It's required when 'createMode' is 'PointInTimeRestore' or 'GeoRestore' or 'Replica'. This property is returned only for Replica server",
           "x-ms-mutability": [
-            "create"
+            "create",
+            "read"
           ]
         },
         "pointInTimeUTC": {
@@ -513,7 +514,8 @@
         "replicaCapacity": {
           "type": "integer",
           "format": "int32",
-          "description": "Replicas allowed for a server."
+          "description": "Replicas allowed for a server.",
+          "readOnly": true
         },
         "createMode": {
           "type": "string",
@@ -816,7 +818,7 @@
         },
         "type": {
           "type": "string",
-          "description": "the types of identities associated with this resource; currently restricted to 'SystemAssigned and UserAssigned'",
+          "description": "the types of identities associated with this resource; currently restricted to 'None and UserAssigned'",
           "enum": [
             "None",
             "UserAssigned"
@@ -825,6 +827,11 @@
             "name": "IdentityType",
             "modelAsString": true
           }
+        },
+        "tenantId": {
+          "type": "string",
+          "description": "Tenant id of the server.",
+          "readOnly": true
         }
       },
       "required": [

specification/postgresql/resource-manager/Microsoft.DBforPostgreSQL/stable/2022-12-01/examples/ServerCreateReplica.json

@@ -55,6 +55,7 @@
             "startHour": 0,
             "startMinute": 0
           },
+          "sourceServerResourceId": "/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/resourceGroups/testrg/providers/Microsoft.DBforPostgreSQL/flexibleServers/sourcepgservername",
           "replicationRole": "AsyncReplica",
           "replicaCapacity": 0
         },
@@ -108,6 +109,7 @@
             "startHour": 0,
             "startMinute": 0
           },
+          "sourceServerResourceId": "/subscriptions/ffffffff-ffff-ffff-ffff-ffffffffffff/resourceGroups/testrg/providers/Microsoft.DBforPostgreSQL/flexibleServers/sourcepgservername",
           "replicationRole": "AsyncReplica",
           "replicaCapacity": 0
         },