token-client: Make confirmation of `ProgramRpcClientSendTransaction` optional #5306

Job	Run time
cargo-test-sbf	12m 57s
cargo-test-token-2022-serde	4m 1s
cargo-build-test-cli	17m 7s
cargo-test-sbf-associated-token-account	5m 53s
cargo-test-sbf-token-2022	10m 5s
cargo-test-sbf-transfer-hook	4m 47s
js-test	8m 41s
cargo-build-test-transfer-hook-cli	13m 2s
	1h 16m 33s

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