Update Test-AzTemplate.ps1
Update Test-AzTemplate.ps1

I used Test-AzTemplate.ps1 in an Ubuntu-based Build Agent (Azure DevOps) and recognized that it's using the wrong delimiter (; instead of :) I added an if-statement based on $PSVersionTable.Platform to set the delimiter based on the decision if the underlaying Platform is Unix (:) or not (;)
jmservera/azure-quickstart-templates,nzthiago/azure-quickstart-templates,tfitzmac/azure-quickstart-templates,nzthiago/azure-quickstart-templates,simongdavies/azure-quickstart-templates,bmoore-msft/azure-quickstart-templates,slapointe/azure-quickstart-templates,neudesic/azure-quickstart-templates,Azure/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,jmservera/azure-quickstart-templates,simongdavies/azure-quickstart-templates,matt1883/azure-quickstart-templates,slapointe/azure-quickstart-templates,jmservera/azure-quickstart-templates,simongdavies/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,simongdavies/azure-quickstart-templates,Azure/azure-quickstart-templates,simongdavies/azure-quickstart-templates,nzthiago/azure-quickstart-templates,MCKLMT/azure-quickstart-templates,johndowns/azure-quickstart-templates,matt1883/azure-quickstart-templates,nzthiago/azure-quickstart-templates,Azure/azure-quickstart-templates,Azure/azure-quickstart-templates,daltskin/azure-quickstart-templates,daltskin/azure-quickstart-templates,matt1883/azure-quickstart-templates,sabbour/azure-quickstart-templates,sabbour/azure-quickstart-templates,neudesic/azure-quickstart-templates,slapointe/azure-quickstart-templates,nilaydshah/azure-quickstart-templates,matt1883/azure-quickstart-templates,MCKLMT/azure-quickstart-templates,MCKLMT/azure-quickstart-templates,simongdavies/azure-quickstart-templates,nilaydshah/azure-quickstart-templates,nilaydshah/azure-quickstart-templates,simongdavies/azure-quickstart-templates,bmoore-msft/azure-quickstart-templates,slapointe/azure-quickstart-templates,daltskin/azure-quickstart-templates,bmoore-msft/azure-quickstart-templates,neudesic/azure-quickstart-templates,tfitzmac/azure-quickstart-templates,bmoore-msft/azure-quickstart-templates,nilaydshah/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,tfitzmac/azure-quickstart-templates,neudesic/azure-quickstart-templates,johndowns/azure-quickstart-templates,neudesic/azure-quickstart-templates,tfitzmac/azure-quickstart-templates,nzthiago/azure-quickstart-templates,johndowns/azure-quickstart-templates,MCKLMT/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,jmservera/azure-quickstart-templates,daltskin/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,simongdavies/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,Azure/azure-quickstart-templates,bmoore-msft/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,simongdavies/azure-quickstart-templates,jmservera/azure-quickstart-templates,sabbour/azure-quickstart-templates,MCKLMT/azure-quickstart-templates,nilaydshah/azure-quickstart-templates,johndowns/azure-quickstart-templates,MCKLMT/azure-quickstart-templates,slapointe/azure-quickstart-templates,nzthiago/azure-quickstart-templates,bmoore-msft/azure-quickstart-templates,takekazuomi/azure-quickstart-templates,johndowns/azure-quickstart-templates,tfitzmac/azure-quickstart-templates,tfitzmac/azure-quickstart-templates,johndowns/azure-quickstart-templates,jmservera/azure-quickstart-templates,nilaydshah/azure-quickstart-templates,MCKLMT/azure-quickstart-templates,sabbour/azure-quickstart-templates,neudesic/azure-quickstart-templates,slapointe/azure-quickstart-templates,Azure/azure-quickstart-templates,MCKLMT/azure-quickstart-templates