make bank_client optional in tps-client #16167

Job	Run time
cargo-test-sbf (associated-token-account)	7m 18s
cargo-test-sbf (feature-proposal)	6m 6s
check (associated-token-account)	2m 44s
test_cli (single-pool)	13m 41s
cargo-test-sbf (instruction-padding)	6m 56s
check (feature-proposal)	2m 45s
test_cli (token-2022)	14m 2s
cargo-test-sbf (memo)	5m 49s
check (instruction-padding)	1m 13s
cargo-test-sbf (record)	7m 25s
check (memo)	1m 45s
cargo-test-sbf (single-pool)	8m 54s
check (record)	1m 37s
cargo-test-sbf (slashing)	14m 9s
check (single-pool)	1m 55s
cargo-test-sbf (stake-pool)	10m 9s
check (slashing)	1m 10s
cargo-test-sbf (token-2022)	6m 30s
check (stake-pool)	2m 10s
check (token-2022)	5m 21s
	2h 1m 39s

Provide feedback