test(electrum): `fetch_prev_txout` does not process coinbase transact… #278

Job	Run time
Build & Test Examples (example_cli)	19s
Build and test (stable, true, --no-default-features --features miniscript/no-std)	2m 5s
Build & Test Examples (example_bitcoind_rpc_polling)	27s
Check no_std	17s
Build and test (stable, true, --all-features)	3m 49s
Build & Test Examples (example_electrum)	47s
Build and test (1.63.0, --no-default-features --features miniscript/no-std)	3m 0s
Check WASM	50s
Build & Test Examples (example_esplora)	52s
Build and test (1.63.0, --all-features)	5m 17s
Build & Test Examples (example_wallet_electrum)	52s
Build & Test Examples (example_wallet_esplora_async)	57s
Rust fmt	6s
prepare	3s
Build & Test Examples (example_wallet_esplora_blocking)	51s
Build & Test Examples (example_wallet_rpc)	39s
clippy_check	42s
	21m 53s

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