Fix build by updating all vmImage to 'macOS-10.14' as Azure Pipelines has stopped supporting Default Hosted, WinCon, and MacOS 10.13 images (#4732)
Fix build by updating all vmImage to 'macOS-10.14' as Azure Pipelines has stopped supporting Default Hosted, WinCon, and MacOS 10.13 images (#4732)


projectkudu/AzureFunctions,projectkudu/AzureFunctions,projectkudu/AzureFunctions,projectkudu/AzureFunctions