feat: forward remote dynamic filter updates to coordinator

[jayshrivastava]

Stack

This stack of PRs implements distributed dynamic filtering #528

1. coordinator: display consumer dynamic filters after execution #623
2. feat: plan distributed dynamic filters #634
3. feat: forward remote dynamic filter updates to coordinator #635 <- you are here
4. coordinator: merge partial dynamic filters  #636
5. coordinator: forward merged dynamic filters to consumers #637
6. [do not review] worker: apply merged dynamic filters during execution #639

Problem

The QueryCoordinator needs to receive partial dynamic filter updates from workers.

Solution

We introduce a new WorkerToCoordinatorMsg which

message ProducedDynamicFilter {
  uint64 expression_id = 1;
  // Serialized datafusion.proto.PhysicalExprNode.
  bytes expression_proto = 2;
}

In this PR makes each worker unconditionally send updates (via wait_update() and wait_complete()) to the coordinator for any dynamic_filter_remote_producer_ids in the SetPlanRequest. The purpose of dynamic_filter_remote_producer_ids is to exclude any dynamic filters who only have local consumers - these don't need to be forwarded to the coordinator.