test(wallet): create tx locktime cltv for a specific time #6626

Job	Run time
prepare	3s
Rust fmt	11s
Build & Test Examples (example_cli)	30s
Build and test (1.83.0, true, --no-default-features --features miniscript/no-std)	2m 28s
Check no_std	38s
Build & Test Examples (example_bitcoind_rpc_polling)	35s
Check WASM	1m 12s
Build & Test Examples (example_electrum)	56s
Build and test (1.83.0, true, --all-features)	4m 4s
Build and test (1.63.0, --no-default-features --features miniscript/no-std)	4m 14s
Build & Test Examples (example_esplora)	58s
clippy_check	1m 26s
Build and test (1.63.0, --all-features)	5m 56s
Build & Test Examples (example_wallet_electrum)	56s
Build & Test Examples (example_wallet_esplora_async)	1m 6s
Build & Test Examples (example_wallet_esplora_blocking)	52s
Build & Test Examples (example_wallet_rpc)	37s
	26m 42s

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