deps: update tendermint-rs to v0.34, ibc-proto-rs to v0.37, prost to …

…v0.12, tonic to v0.10 (#895)

* deps: update tendermint-rs, ibc-proto-rs, prost, tonic

* deps: bump ibc-proto-rs version along with some others

* fix: remove query_next_sequence_send with explanation

* nit: revise comment for query_next_sequence_send