Update Cloudzero Settings

Update existing CloudZero settings.

Allows updating individual CloudZero configuration fields without requiring all fields. Only provided fields will be updated; others will remain unchanged.

Parameters:

• api_key: (Optional) New CloudZero API key for authentication
• connection_id: (Optional) New CloudZero connection ID for data submission
• timezone: (Optional) New timezone for date handling

Only admin users can update CloudZero settings.