fix(wallet): build with no default features #6136

Job	Run time
Build and test (stable, true, --no-default-features)	4m 23s
Build & Test Examples (example_cli)	2m 45s
Build and test (stable, true, --all-features)	4m 4s
Build & Test Examples (example_bitcoind_rpc_polling)	33s
Build and test (1.63.0, --no-default-features)	4m 46s
Check no_std	2m 26s
Build & Test Examples (example_electrum)	50s
Build and test (1.63.0, --all-features)	4m 59s
Check WASM	2m 51s
Build & Test Examples (example_esplora)	1m 6s
Rust fmt	5s
Build & Test Examples (example_wallet_electrum)	1m 0s
prepare	5s
Build & Test Examples (example_wallet_esplora_async)	57s
Build & Test Examples (example_wallet_esplora_blocking)	55s
Build & Test Examples (example_wallet_rpc)	32s
clippy_check	2m 44s
	35m 1s

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