Add global concurrency limit to the deployment update route

[cbelsole]

Describe the current behavior

Currently, when you create a deployment you can set a global_concurrency_limit. If you an existing deployment that setting does not exist on the update call.

Describe the proposed behavior

The update call should have an option to add a global_concurrency_limit so we don't have to create a new deployment in order to set a limit.

Example Use

No response

Additional context

No response