ref(workflows): consolidate workflows based on their purpose #19

Job	Run time
Generate crates matrix	23s
Check crates matrix	4s
Build tower-batch-control crate	41s
Build tower-fallback crate	34s
Build zebra-chain crate	4m 14s
Build zebra-consensus crate	14m 1s
Build zebra-network crate	3m 14s
Build zebra-node-services crate	3m 43s
Build zebra-rpc crate	12m 59s
Build zebra-script crate	2m 54s
Build zebra-state crate	14m 28s
Build zebra-test crate	1m 23s
Build zebra-utils crate	14m 10s
Build zebrad crate	21m 21s
Open or update issues for building crates individually failures	0s
	1h 34m 9s

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