Allow rpc_url to be assigned on Client with test-support feature (#13430)

Also, allow proto messages to be deserialized. This is to support
translating these messages JS types in a new server implementation based
on CloudFlare durable objects.

Release Notes:

- N/A
77b31d1845Nathan Sobo committed on 7/10/2024, 7:36:22 PM· committed by GitHubparent15b8790
3 files changedLine totals unavailable