feat(host-rpc): add backpressure controls to notifier (#123) #631

Job	Run time
rust-library-base / Base Checks / Rustfmt	36s
rust-library-base / Base Checks / Test Suite	11m 59s
rust-library-base / Base Checks / Docs	5m 25s
rust-library-base / Feature Checks	5m 28s
rust-library-base / Base Checks / doctest	6m 4s
rust-library-base / Base Checks / Clippy	4m 15s
	33m 47s

Provide feedback