change(rpc): Avoid re-verifying transactions in blocks if those transactions are in the mempool #1991

Job	Run time
Generate crates matrix	19s
Check crates matrix	2s
Build zebrad crate	54s
Build zebra-utils crate	7s
Build zebra-test crate	38s
Build zebra-state crate	53s
Build zebra-script crate	1s
Build zebra-scan crate	1s
Build zebra-rpc crate	1s
Build zebra-node-services crate	1s
Build zebra-network crate	1s
Build zebra-grpc crate	1s
Build zebra-consensus crate	1s
Build zebra-chain crate	1s
Build tower-fallback crate	1s
Build tower-batch-control crate	1s
Open or update issues for building crates individually failures	0s
	3m 3s

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