Clash-rs crashed when UDP direct domain name resolving faild

Clash-rs crashed when this line of code is triggered https://github.com/Watfaq/clash-rs/blob/0976e6a6965e796e5b0f5093e4b77627729a0f5f/clash-lib/src/app/dispatcher/dispatcher_impl.rs#L450 It seems to occur when udp direct domain name resolving failed. The crash report is listed below ``` name = "clash-rs" operating_system = "Linux (NixOS 26.05) [x86_64]" crate_version = "0.10.2" explanation = """ Panic occurred in file '/home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.51.0/src/runtime/task/core.rs' at line 422 """ cause = "JoinHandle polled after completion" method = "Panic" backtrace = """ 0: 0x728b386ba0bc - <unresolved> 1: 0x728b386b9f3c - <unresolved> 2: 0x728b3859f154 - <unresolved> 3: 0x728b38b4df44 - <unresolved> 4: 0x728b38b3548a - <unresolved> 5: 0x728b38b2d119 - <unresolved> 6: 0x728b38b362bd - <unresolved> ```