Instrument RPC tests with tpu-client-next #18905

Job	Run time
check (associated-token-account)	2m 49s
cargo-test-sbf (associated-token-account)	7m 57s
cargo-test-sbf (feature-proposal)	6m 50s
check (feature-proposal)	2m 29s
cargo-test-sbf (instruction-padding)	8m 48s
check (instruction-padding)	1m 6s
cargo-test-sbf (memo)	6m 35s
test_cli (single-pool)	18m 36s
check (memo)	1m 25s
cargo-test-sbf (record)	6m 45s
test_cli (token-2022)	17m 39s
cargo-test-sbf (single-pool)	8m 33s
check (record)	1m 8s
cargo-test-sbf (slashing)	15m 20s
check (single-pool)	3m 11s
cargo-test-sbf (stake-pool)	11m 8s
check (slashing)	1m 28s
cargo-test-sbf (token-2022)	8m 6s
check (stake-pool)	4m 6s
check (token-2022)	2m 44s
	2h 16m 43s

Provide feedback