Fix test_oc_bad_signatures #12608

Job	Run time
cargo-test-sbf (token/program)	10m 38s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	14m 38s
check	4m 19s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	9m 7s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	16m 59s
cargo-test-sbf (token-upgrade/program)	7m 50s
test (single-pool/cli, single-pool/program)	16m 8s
cargo-test-sbf (feature-proposal/program)	10m 2s
test (token-upgrade/cli, token-upgrade/program)	15m 1s
cargo-test-sbf (governance/addin-mock/program, governance/program)	11m 31s
cargo-test-sbf (memo/program)	9m 29s
cargo-test-sbf (name-service/program)	8m 5s
cargo-test-sbf (stake-pool/program)	12m 7s
cargo-test-sbf (single-pool/program)	9m 0s
	2h 34m 54s

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