fix(cli): Correctly check for available nodes, remove dead nodes (#251) #846

Job	Run time
bdk_test	3m 2s
sqlx_test	1m 32s
static_analysis	2m 22s
build (x86_64-unknown-linux-gnu, ubuntu-latest)	6m 0s
build (armv7-unknown-linux-gnueabihf, ubuntu-latest)	7m 26s
check_stable	6m 27s
docker_tests (happy_path)	3m 36s
build (x86_64-apple-darwin, macos-13)	10m 45s
rpc_tests	4m 9s
docker_tests (happy_path_restart_bob_after_xmr_locked)	3m 2s
build (aarch64-apple-darwin, macos-latest)	6m 12s
test (ubuntu-latest)	5h 57m 14s
docker_tests (happy_path_restart_bob_before_xmr_locked)	3m 4s
build (x86_64-pc-windows-msvc, windows-latest)	5m 46s
test (macos-latest)	6h 0m 16s
docker_tests (happy_path_restart_alice_after_xmr_locked)	4m 15s
docker_tests (alice_and_bob_refund_using_cancel_and_refund_command)	6m 14s
docker_tests (alice_and_bob_refund_using_cancel_then_refund_command)	6m 14s
docker_tests (alice_and_bob_refund_using_cancel_and_refund_command_timelock_not_expired)	6m 7s
docker_tests (alice_manually_punishes_after_bob_dead_and_bob_cancels)	6m 46s
docker_tests (punish)	3m 28s
docker_tests (alice_punishes_after_restart_bob_dead)	6m 43s
docker_tests (alice_manually_punishes_after_bob_dead)	6m 19s
docker_tests (alice_refunds_after_restart_bob_refunded)	6m 6s
docker_tests (ensure_same_swap_id)	2m 35s
docker_tests (concurrent_bobs_before_xmr_lock_proof_sent)	3m 20s
docker_tests (concurrent_bobs_after_xmr_lock_proof_sent)	6m 26s
docker_tests (alice_manually_redeems_after_enc_sig_learned)	6m 19s
docker_tests (happy_path_bob_offline_while_alice_redeems_btc)	5m 51s
	14h 17m 36s

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