feat: enable trace logs for payments

[Jasonvdb]

Enables trace logging for the duration of payWithTimeout + 10 seconds. So we can get details on paths attempted:

2025-01-29 14:06:28 UTC TRACE (LDK): Found a path back to us from the target with 1 hops contributing up to 22000 msat: 
 [
    PathBuildingHop {
        node_id: Some(
            NodeId(0341e41583ad691951634e24dd20252d13feace9286a85d47f220dde74e7e09a15),
        ),
        short_channel_id: Some(
            13613053463560193,
        ),
        total_fee_msat: 0,
        next_hops_fee_msat: 0,
        hop_use_fee_msat: 0,
        total_fee_msat - (next_hops_fee_msat + hop_use_fee_msat): 0,
        path_penalty_msat: 0,
        path_htlc_minimum_msat: 1,
        cltv_expiry_delta: 0,
    },
] (lightning::routing::router 2834)