Unable to get latest version in 'az artifacts universal download'

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

## Describe the bug
I want to be able to download the latest version of my project's artifacts with a simple command, I have tried
Unable to get latest version in 'az artifacts universal download'

**Command Name**
`az artifacts universal download
Extension Name: azure-devops. Version: 0.18.0.`

**Errors:**
```
Did not find any versions of '[someName]' that matched the pattern '*'
```

## 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 artifacts universal download --organization {} --project {} --scope {} --feed {} --name {} --version {} --path {}`

## Expected Behavior
Downloading the latest version. Instead I get 'Did not find any versions of 'someName' that matched the pattern '*' ', though if I put in the latest version as of right now(1.0.2005-29001) it works fine.

## Environment Summary
```
Windows-10-10.0.18362-SP0
Python 3.6.6
Installer: MSI

azure-cli 2.5.1 *

Extensions:
azure-devops 0.18.0

```
## Additional Context