Simple OData filter results in error

**Describe the bug**

I'm trying to use an OData filter to query Azure AD groups that start with a certain prefix. Executing the command results in the following error:

```
PS C:\Users\xxxxx> az ad group list --filter "startswith(displayName,'somePrefix')"
')' or ',' expected at position 33 in 'startswith(displayName,'somePrefix''.

C:\Users\xxxxx>echo Failed to load python executable.
Failed to load python executable.
C:\Users\xxxxx>exit /b 1
```

**To Reproduce**

Run the following command in PowerShell:

`az ad group list --filter "startswith(displayName,'somePrefix')"`

**Expected behavior**

I expect the command to return a list of AAD groups where the displayName starts with _somePrefix_

**Environment summary**

Azure CLI installed via MSI on Windows 10 Enterprise 1909
Azure CLI version 2.22.1
Using Azure CLI via PowerShell