{Core} `aaz`: fix issue in load_aaz_command_table for azdev and CI (#22709)
{Core} `aaz`: fix issue in load_aaz_command_table for azdev and CI (#22709)

* load_aaz_command_table support to pass None in args

* fix style issue
yugangw-msft/azure-cli,yugangw-msft/azure-cli,yugangw-msft/azure-cli,yugangw-msft/azure-cli,yugangw-msft/azure-cli,yugangw-msft/azure-cli