API for setting RPS limits for activity tasks dispatch

Is your feature request related to a problem? Please describe.
Currently, users are able to control the activity task dispatch RPS (rate per second) as a configuration option before instantiating a worker. After a worker has started and polls for tasks, this RPS value can only be changed by re-deploying the workers. This has proved to be a pain-point for some users

Describe the solution you'd like
I shall be working on implementing an API which shall allow customers to set this RPS limit. My implementation shall also prevent re-deploying of new/existing workers for changing the RPS value.

Describe alternatives you've considered
NA - This seems to be a good solution to solve the problem at hand.

Additional context
This is how customers set this limit, as of today:

w := worker.New(c, "hello-world", worker.Options{
		TaskQueueActivitiesPerSecond: 100, // default value: 100K
	})