v1.18: blockstore: only consume duplicate proofs from root_slot + 1 o… #9868

Job	Run time
check	0s
cargo-test-sbf (token/program)	7m 54s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	13m 47s
test	0s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	8m 58s
cargo-test-sbf (token-upgrade/program)	8m 18s
cargo-test-sbf (feature-proposal/program)	7m 47s
cargo-test-sbf (governance/addin-mock/program, governance/program)	11m 54s
cargo-test-sbf (memo/program)	7m 55s
cargo-test-sbf (name-service/program)	7m 44s
cargo-test-sbf (stake-pool/program)	11m 20s
cargo-test-sbf (single-pool/program)	8m 41s
	1h 34m 18s

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