Update domain name of online docs

Co-authored-by: dingmeng-xue <dixue@microsoft.com>

Author: LucasYao93

src/Synapse/Synapse.Autorest/custom/New-AzSynapseKustoPool.ps1

@@ -28,7 +28,7 @@ East US 2 testws/testnewkustopool Microsoft.Synapse/workspaces/kustoPools
 .Outputs
 Microsoft.Azure.PowerShell.Cmdlets.Synapse.Models.Api20210601Preview.IKustoPool
 .Link
-https://docs.microsoft.com/powershell/module/az.synapse/new-azsynapsekustopool
+https://learn.microsoft.com/powershell/module/az.synapse/new-azsynapsekustopool
 #>
 function New-AzSynapseKustoPool {
     [OutputType([Microsoft.Azure.PowerShell.Cmdlets.Synapse.Models.Api20210601Preview.IKustoPool])]

src/Synapse/Synapse.Autorest/custom/New-AzSynapseKustoPoolDataConnection.ps1

@@ -56,7 +56,7 @@ PARAMETER <IDataConnection>: Class representing a data connection.
   [SystemDataLastModifiedBy <String>]: The identity that last modified the resource.
   [SystemDataLastModifiedByType <CreatedByType?>]: The type of identity that last modified the resource.
 .Link
-https://docs.microsoft.com/powershell/module/az.synapse/new-azsynapsekustopooldataconnection
+https://learn.microsoft.com/powershell/module/az.synapse/new-azsynapsekustopooldataconnection
 #>
 function New-AzSynapseKustoPoolDataConnection {
     [OutputType([Microsoft.Azure.PowerShell.Cmdlets.Synapse.Models.Api20210601Preview.IDataConnection])]

src/Synapse/Synapse.Autorest/custom/New-AzSynapseKustoPoolDatabase.ps1

@@ -28,7 +28,7 @@ ReadWrite East US 2 testws/testkustopool/mykustodatabase
 .Outputs
 Microsoft.Azure.PowerShell.Cmdlets.Synapse.Models.Api20210601Preview.IDatabase
 .Link
-https://docs.microsoft.com/powershell/module/az.synapse/new-azsynapsekustopooldatabase
+https://learn.microsoft.com/powershell/module/az.synapse/new-azsynapsekustopooldatabase
 #>
 function New-AzSynapseKustoPoolDatabase {
     [OutputType([Microsoft.Azure.PowerShell.Cmdlets.Synapse.Models.Api20210601Preview.IDatabase])]

src/Synapse/Synapse.Autorest/custom/Update-AzSynapseKustoPoolDataConnection.ps1

@@ -70,7 +70,7 @@ PARAMETER <IDataConnection>: Class representing a data connection.
   [SystemDataLastModifiedBy <String>]: The identity that last modified the resource.
   [SystemDataLastModifiedByType <CreatedByType?>]: The type of identity that last modified the resource.
 .Link
-https://docs.microsoft.com/powershell/module/az.synapse/update-azsynapsekustopooldataconnection
+https://learn.microsoft.com/powershell/module/az.synapse/update-azsynapsekustopooldataconnection
 #>
 function Update-AzSynapseKustoPoolDataConnection {
     [OutputType([Microsoft.Azure.PowerShell.Cmdlets.Synapse.Models.Api20210601Preview.IDataConnection])]

src/Synapse/Synapse.Autorest/custom/Update-AzSynapseKustoPoolDatabase.ps1

@@ -48,7 +48,7 @@ INPUTOBJECT <ISynapseIdentity>: Identity Parameter
   [SubscriptionId <String>]: The ID of the target subscription.
   [WorkspaceName <String>]: The name of the workspace
 .Link
-https://docs.microsoft.com/powershell/module/az.synapse/update-azsynapsekustopooldatabase
+https://learn.microsoft.com/powershell/module/az.synapse/update-azsynapsekustopooldatabase
 #>
 function Update-AzSynapseKustoPoolDatabase {
     [OutputType([Microsoft.Azure.PowerShell.Cmdlets.Synapse.Models.Api20210601Preview.IDatabase])]