add in method for building a `TpuClient` for `LocalCluster` tests #839

Job	Run time
cargo-test-sbf (token/program)	10m 30s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	13m 26s
check	0s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	8m 30s
cargo-test-sbf (token-upgrade/program)	14m 44s
test	0s
cargo-test-sbf (feature-proposal/program)	7m 58s
cargo-test-sbf (governance/addin-mock/program, governance/program)	12m 24s
cargo-test-sbf (memo/program)	9m 54s
cargo-test-sbf (name-service/program)	8m 18s
cargo-test-sbf (stake-pool/program)	11m 19s
cargo-test-sbf (single-pool/program)	8m 19s
	1h 45m 22s

Provide feedback