Running az purview does not install the extension as the documentation suggests

### Describe the bug

The documentation suggests....

**This reference is part of the purview extension for the Azure CLI (version 2.15.0 or higher). The extension will automatically install the first time you run an az purview command. [Learn more](https://learn.microsoft.com/en-us/cli/azure/azure-cli-extensions-overview) about extensions.**

This isn't true, not of version 2.50.0 which is higher than the specificed 2.15.0 above - needs revisiting

```
PS C:\> az --version
azure-cli 2.50.0 *

core 2.50.0 *
telemetry 1.0.8 *

Extensions:
application-insights 0.1.19
azure-devops 0.26.0
k8s-extension 1.4.3
kusto 0.5.0
ml 2.19.0
storage-preview 0.9.0

Dependencies:
msal 1.22.0
azure-mgmt-resource 23.1.0b2

Python location 'C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\python.exe'
Extensions directory 'C:\Users\NeilMcAlister\.azure\cliextensions'

Python (Windows) 3.10.10 (tags/v3.10.10:aad5f6a, Feb 7 2023, 17:05:00) [MSC v.1929 32 bit (Intel)]

Legal docs and information: aka.ms/AzureCliLegal

You have 3 update(s) available. Consider updating your CLI installation with 'az upgrade'
PS C:\> az purview
'purview' is misspelled or not recognized by the system.

Examples from AI knowledge base:
https://aka.ms/cli_ref
Read more about the command in reference docs
```

### Related command

az --version
az purview

### Errors

'purview' is misspelled or not recognized by the system.

### Issue script & Debug output

az --version
az purview

### Expected behavior

Installs as per documentation

### Environment Summary

PS C:\> az --version
azure-cli 2.50.0 *

core 2.50.0 *
telemetry 1.0.8 *

Extensions:
application-insights 0.1.19
azure-devops 0.26.0
k8s-extension 1.4.3
kusto 0.5.0
ml 2.19.0
storage-preview 0.9.0

Dependencies:
msal 1.22.0
azure-mgmt-resource 23.1.0b2

Python location 'C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\python.exe'
Extensions directory 'C:\Users\NeilMcAlister\.azure\cliextensions'

Python (Windows) 3.10.10 (tags/v3.10.10:aad5f6a, Feb 7 2023, 17:05:00) [MSC v.1929 32 bit (Intel)]

Legal docs and information: aka.ms/AzureCliLegal

### Additional context

_No response_