Failure with AZ SQL VM GROUP CREATE

## Describe the bug
Not sure why this is happening. I upgraded to the most recent version of the CLI and still get this issue. This is the parameter that i'm using:
--storage-account 'https://myStorage.blob.core.windows.net/'

However, I'm getting this error:
"Message: Storage account url is invalid. Needs to be blob service endpoint."

**Command Name**
`az sql vm group create`

**Errors:**
```
The command failed with an unexpected error. Here is the traceback:
'Response' object has no attribute 'internal_response'
Traceback (most recent call last):
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/__init__.py", line 691, in _run_job
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/__init__.py", line 328, in __call__
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/command_operation.py", line 121, in handler
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/command_modules/sqlvm/custom.py", line 89, in sqlvm_group_create
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/util.py", line 648, in sdk_no_wait
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/mgmt/sqlvirtualmachine/operations/_sql_virtual_machine_groups_operations.py", line 187, in create_or_update
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/mgmt/sqlvirtualmachine/operations/_sql_virtual_machine_groups_operations.py", line 145, in _create_or_update_initial
msrestazure.azure_exceptions.CloudError: Azure Error: InvalidStorageAccountUrl
Message: Storage account url is invalid. Needs to be blob service endpoint.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/arm.py", line 109, in handle_template_based_exception
AttributeError: 'str' object has no attribute 'message'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/cli.py", line 231, in invoke
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/__init__.py", line 657, in execute
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/__init__.py", line 720, in _run_jobs_serially
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/__init__.py", line 712, in _run_job
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/arm.py", line 112, in handle_template_based_exception
AttributeError: 'Response' object has no attribute 'internal_response'

```

## To Reproduce:
Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

- _Put any pre-requisite steps here..._
- `az sql vm group create --name {} --resource-group {} --image-offer {} --image-sku {} --domain-fqdn {} --operator-acc {} --service-acc {} --sa-key {} --storage-account {}`

## Environment Summary
```
Windows-10-10.0.19041-SP0
Python 3.8.9
Installer: MSI

azure-cli 2.26.1

Extensions:
aks-preview 0.5.5
azure-devops 0.18.0
monitor-control-service 0.1.0

```
## Additional Context