build(deps): bump config from 0.14.0 to 0.15.5 #5193

Job	Run time
check_stable	29s
bdk_test	17s
build (x86_64-unknown-linux-gnu, ubuntu-latest)	23s
docker_tests (happy_path)	20s
build (armv7-unknown-linux-gnueabihf, ubuntu-latest)	1m 20s
docker_tests (happy_path_restart_bob_after_xmr_locked)	1s
build (x86_64-apple-darwin, macos-12)	1s
docker_tests (happy_path_restart_bob_before_xmr_locked)	1s
rpc_tests	19s
build (aarch64-apple-darwin, macos-latest)	32s
docker_tests (happy_path_restart_alice_after_xmr_locked)	1s
sqlx_test	2m 19s
build (x86_64-pc-windows-msvc, windows-latest)	4m 29s
docker_tests (alice_and_bob_refund_using_cancel_and_refund_command)	21s
docker_tests (alice_and_bob_refund_using_cancel_then_refund_command)	24s
static_analysis	26s
test (ubuntu-latest)	34s
test (macos-latest)	36s
docker_tests (alice_and_bob_refund_using_cancel_and_refund_command_timelock_not_expired)	19s
docker_tests (alice_manually_punishes_after_bob_dead_and_bob_cancels)	20s
docker_tests (punish)	1s
docker_tests (alice_punishes_after_restart_bob_dead)	22s
docker_tests (alice_manually_punishes_after_bob_dead)	19s
docker_tests (alice_refunds_after_restart_bob_refunded)	22s
docker_tests (ensure_same_swap_id)	20s
docker_tests (concurrent_bobs_before_xmr_lock_proof_sent)	23s
docker_tests (concurrent_bobs_after_xmr_lock_proof_sent)	21s
docker_tests (alice_manually_redeems_after_enc_sig_learned)	21s
docker_tests (happy_path_bob_offline_while_alice_redeems_btc)	22s
	16m 23s

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