az debug commands leak user provided password (`x-ms-secret` fields)

**Describe the bug**

`az` commands run with the `debug` flag display the password in the terminal. My assumption is the logger az uses `knack.cli`, cannot distinguish secrets from other string inputs.

**Currently there is no way to mask the user provided secret value (marked as `x-ms-secret` in the swagger) while developing az extensions**

**To Reproduce**

An example is
`az vm create --debug -g snaskar-rg --image UbuntuLTS -n test-vm-01 --admin-password Open-Secret-1`

An example involving an az extension:

`az scvmm vmmserver connect --debug -g snaskar-rg -l eastus2euap -cl '/subscriptions/204898ee-cd13-4332-b9d4-55ca5c25496d/resourcegroups/snaskar-rg/providers/microsoft.extendedlocation/customlocations/arcvmm-1201-cl' --fqdn '10.10.10.10' --username 'host\user' --password 'Open-Secret-1' -n arcvmm-1201-vmmserver`

**Expected behavior**

`Open-Secret-1` should not be displayed in the debug logs. This will be helpful if the user wants to share the logs for debugging any issues, also if the user is running the command sharing his screen.

**Environment summary**

**Additional context**

The complete logs can be found [here][1].

[1]: https://gist.github.com/nascarsayan/ccad7c512676e14fdbc9866f54e3e7fb