fix: Remove createdby from pipeline and add change Createdby logic in bice… (#678)

* Remove createdby from pipeline and add change Createdby logic in bicep file

* Add 'createdBy' parameter to Azure deployment

* Add 'createdBy' parameter for tagging

Author: NirajC-Microsoft

infra/main.bicep

@@ -275,8 +275,8 @@ resource existingLogAnalyticsWorkspace 'Microsoft.OperationalInsights/workspaces
 
 var logAnalyticsWorkspaceResourceId = useExistingLogAnalytics  ? existingLogAnalyticsWorkspaceId  : logAnalyticsWorkspace!.outputs.resourceId
 
-@description('Optional created by user name')
-param createdBy string = empty(deployer().userPrincipalName) ? '' : split(deployer().userPrincipalName, '@')[0]
+@description('Tag, Created by user name')
+param createdBy string = contains(deployer(), 'userPrincipalName')? split(deployer().userPrincipalName, '@')[0]: deployer().objectId
 
 // ========== Resource Group Tag ========== //
 resource resourceGroupTags 'Microsoft.Resources/tags@2021-04-01' = {