Update the default AZCOPY_VERSION to 10.28.0

Author: PabloZaiden

src/azure-cli/azure/cli/command_modules/storage/azcopy/util.py

@@ -22,7 +22,7 @@
 
 STORAGE_RESOURCE_ENDPOINT = "https://storage.azure.com"
 SERVICES = {'blob', 'file'}
-AZCOPY_VERSION = '10.13.0'
+AZCOPY_VERSION = '10.28.0'
 
 
 class AzCopy: