move cosmos macos CI to linux (#8475)
move cosmos macos CI to linux (#8475)

* move CI to linux

* fixed typo in image iname

Azure/azure-sdk-for-java,selvasingh/azure-sdk-for-java,Azure/azure-sdk-for-java,selvasingh/azure-sdk-for-java,Azure/azure-sdk-for-java,selvasingh/azure-sdk-for-java,Azure/azure-sdk-for-java,Azure/azure-sdk-for-java