fix(chain): Use network kind of `TestnetKind` in transparent addresses on Regtest #2419

Job	Run time
Generate crates matrix	8s
Check crates matrix	2s
Build zebrad crate	33m 46s
Build zebra-utils crate	15m 39s
Build zebra-test crate	1m 31s
Build zebra-state crate	29m 54s
Build zebra-script crate	3m 30s
Build zebra-scan crate	22m 54s
Build zebra-rpc crate	31m 54s
Build zebra-node-services crate	3m 31s
Build zebra-network crate	6m 38s
Build zebra-grpc crate	14m 33s
Build zebra-consensus crate	16m 23s
Build zebra-chain crate	5m 18s
Build tower-fallback crate	1m 8s
Build tower-batch-control crate	1m 32s
Open or update issues for building crates individually failures	0s
	3h 8m 21s

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