AKS cluster creation using ARM template is failing with timeout exception

### **This is autogenerated. Please review and update as needed.**

## Describe the bug

**Command Name**
`az deployment group create`

**Errors:**
```
{"status":"Failed","error":{"code":"DeploymentFailed","message":"At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/DeployOperations for usage details.","details":[{"code":"RequestTimeout","message":"{\r\n \"error\": {\r\n \"code\": \"ResourceDeploymentFailure\",\r\n \"message\": \"The resource provision operation did not complete within the allowed timeout period.\"\r\n }\r\n}"}]}}

```

## 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 deployment group create -g {} --template-file {}`

## Expected Behavior

## Environment Summary
```
Linux-5.10.60.1-microsoft-standard-WSL2-x86_64-with-debian-buster-sid, Ubuntu 18.04.6 LTS
Python 3.6.10
Installer: DEB

azure-cli 2.30.0

Extensions:
azure-devops 0.20.0
aks-preview 0.5.42

```
## Additional Context