Merge pull request #601 from microsoft/psl-PipelineFix

fix: Remove createdby from pipeline and change CreatedBy logic in bicep file

Author: Roopan-Microsoft

infra/main.bicep

@@ -151,7 +151,8 @@ param existingLogAnalyticsWorkspaceId string = ''
 param existingAiFoundryAiProjectResourceId string = ''
 
 @description('Optional. created by user name')
-param createdBy string = empty(deployer().userPrincipalName) ? '' : split(deployer().userPrincipalName, '@')[0]
+param createdBy string = contains(deployer(), 'userPrincipalName')? split(deployer().userPrincipalName, '@')[0]: deployer().objectId
+
 
 @maxLength(5)
 @description('Optional. A unique text value for the solution. This is used to ensure resource names are unique for global resources. Defaults to a 5-character substring of the unique string generated from the subscription ID, resource group name, and solution name.')