Cannot upgrade SKU for Databricks workspace using Az.Databricks 1.1.0

## Description

1. Azure Databricks RP supports upgrade/downgrade of workspace SKU. But we couldn't find equivalent commands in Az PowerShell module. [Update-AzDatabricksWorkspace](https://docs.microsoft.com/en-us/powershell/module/az.databricks/update-azdatabricksworkspace?view=azps-5.5.0)

2. In docs [Update-AzDatabricksWorkspace](https://docs.microsoft.com/en-us/powershell/module/az.databricks/update-azdatabricksworkspace?view=azps-5.5.0)

In Example :1 :Updates the tags of a Databricks workspace , GET Command has incorrect parameter "Tag".

Get-AzDatabricksWorkspace -ResourceGroupName databricks-rg-952d47 -Name workspaceopsc46 **-Tag @{'key'=1}**

Please correct document by remove **Tag** Parameter in the above command i.e. **-Tag @{'key'=1}**

## Steps to reproduce

```powershell

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## Environment data

$PSVersionTable.PSVersion

Major Minor Build Revision
----- ----- ----- --------
5 1 19041 610

## Module versions

ModuleType Version Name ExportedCommands
---------- ------- ---- ----------------
Script 1.1.0 Az.Databricks {Get-AzDatabricksVNetPeering, Get-AzDatabricksWorkspace, New-AzDatabricksVNetPeering, New-AzDatabricksWorkspace...}

```powershell

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## Debug output

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## Error output

Update-AzDatabricksWorkspace : A parameter cannot be found that matches parameter name 'Tag'

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