blockstore: populate merkle root metas column #3810

Job	Run time
check	0s
cargo-test-sbf (token/program)	8m 3s
test	0s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	13m 27s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	9m 44s
cargo-test-sbf (token-upgrade/program)	8m 33s
cargo-test-sbf (feature-proposal/program)	7m 23s
cargo-test-sbf (governance/addin-mock/program, governance/program)	11m 32s
cargo-test-sbf (memo/program)	9m 19s
cargo-test-sbf (name-service/program)	7m 55s
cargo-test-sbf (stake-pool/program)	11m 39s
cargo-test-sbf (single-pool/program)	9m 59s
	1h 37m 34s

Provide feedback