Fix concurrent invocations of preview2_tcp_bind test

[alexcrichton]

When binding a specific port allow AddressInUse errors to be returned in case the test is being concurrently run.

[alexcrichton]

Inspired by this failure

---- async_::preview2_tcp_bind stdout ----
preopen: TempDir { path: "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\wasi_components_preview2_tcp_bind.component_Ir9gJE" }
[guest] stderr:
thread 'main' panicked at crates\test-programs\src\bin\preview2_tcp_bind.rs:26:40:
called `Result::unwrap()` on an `Err` value: ErrorCode { code: 1, name: "access-denied", message: "Access denied.\n                \n                POSIX equivalent: EACCES, EPERM" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

===
thread 'async_::preview2_tcp_bind' panicked at crates\wasi\tests\all\async_.rs:319:51:
called `Result::unwrap()` on an `Err` value: error while executing at wasm backtrace:
    0: 0xdca1 - <unknown>!__rust_start_panic
    1: 0xdaf1 - <unknown>!rust_panic
    2: 0xdace - <unknown>!std::panicking::rust_panic_with_hook::hc93abff18edee779
    3: 0xce7a - <unknown>!std::panicking::begin_panic_handler::{{closure}}::h922bcdd9c6fdedfb
    4: 0xcda7 - <unknown>!std::sys_common::backtrace::__rust_end_short_backtrace::h2597d6ecb1d3419e
    5: 0xd3e9 - <unknown>!rust_begin_unwind
    6: 0x12371 - <unknown>!core::panicking::panic_fmt::h35d9e7e9c02f9eb5
    7: 0x13f1e - <unknown>!core::result::unwrap_failed::hdced1445f29366eb
    8: 0x1d10 - <unknown>!core::result::Result<T,E>::unwrap::h8771871f18bd21c1
    9: 0x2977 - <unknown>!preview2_tcp_bind::test_tcp_bind_specific_port::h06839cc116536f73
   10: 0x4b41 - <unknown>!preview2_tcp_bind::main::h1c857dbb109c43d1
   11: 0x17c5 - <unknown>!core::ops::function::FnOnce::call_once::hc44e1040ccca19f2
   12: 0x179c - <unknown>!std::sys_common::backtrace::__rust_begin_short_backtrace::h31f4e51a9e14bc5d
   13: 0x187d - <unknown>!std::rt::lang_start::{{closure}}::h91ee669c4893c2a3
   14: 0xb2d5 - <unknown>!std::rt::lang_start_internal::h394de9c4666f4612
   15: 0x1828 - <unknown>!std::rt::lang_start::h47a12d0663af1965
   16: 0x5109 - <unknown>!__main_void
   17: 0x1777 - <unknown>!_start
   18: 0x2dd4ed - wit-component:adapter:wasi_snapshot_preview1!wasi:cli/run@0.2.0-rc-2023-11-05#run
note: using the `WASMTIME_BACKTRACE_DETAILS=1` environment variable may show more debugging information

Caused by:
    wasm trap: wasm `unreachable` instruction executed
stack backtrace:
   0: rust_begin_unwind
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\std\src/panicking.rs:595:5
   1: core::panicking::panic_fmt
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\core\src/panicking.rs:67:14
   2: core::result::unwrap_failed
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\core\src/result.rs:1652:5
   3: core::result::Result<T,E>::unwrap
   4: all::async_::preview2_tcp_bind::{{closure}}::test_impl::{{closure}}
   5: all::async_::preview2_tcp_bind::{{closure}}
   6: <core::pin::Pin<P> as core::future::future::Future>::poll
   7: tokio::runtime::park::CachedParkThread::block_on::{{closure}}
   8: tokio::runtime::park::CachedParkThread::block_on
   9: tokio::runtime::context::blocking::BlockingRegionGuard::block_on
  10: tokio::runtime::scheduler::multi_thread::MultiThread::block_on::{{closure}}
  11: tokio::runtime::context::runtime::enter_runtime
  12: tokio::runtime::scheduler::multi_thread::MultiThread::block_on
  13: tokio::runtime::runtime::Runtime::block_on
  14: all::async_::preview2_tcp_bind
  15: all::async_::preview2_tcp_bind::{{closure}}
  16: core::ops::function::FnOnce::call_once
  17: core::ops::function::FnOnce::call_once
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\core\src\ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

---- sync::preview2_tcp_bind stdout ----
preopen: TempDir { path: "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\wasi_components_preview2_tcp_bind.component_k8WqX4" }
[guest] stderr:
thread 'main' panicked at crates\test-programs\src\bin\preview2_tcp_bind.rs:26:40:
called `Result::unwrap()` on an `Err` value: ErrorCode { code: 1, name: "access-denied", message: "Access denied.\n                \n                POSIX equivalent: EACCES, EPERM" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

===
thread 'sync::preview2_tcp_bind' panicked at crates\wasi\tests\all\sync.rs:262:45:
called `Result::unwrap()` on an `Err` value: error while executing at wasm backtrace:
    0: 0xdca1 - <unknown>!__rust_start_panic
    1: 0xdaf1 - <unknown>!rust_panic
    2: 0xdace - <unknown>!std::panicking::rust_panic_with_hook::hc93abff18edee779
    3: 0xce7a - <unknown>!std::panicking::begin_panic_handler::{{closure}}::h922bcdd9c6fdedfb
    4: 0xcda7 - <unknown>!std::sys_common::backtrace::__rust_end_short_backtrace::h2597d6ecb1d3419e
    5: 0xd3e9 - <unknown>!rust_begin_unwind
    6: 0x12371 - <unknown>!core::panicking::panic_fmt::h35d9e7e9c02f9eb5
    7: 0x13f1e - <unknown>!core::result::unwrap_failed::hdced1445f29366eb
    8: 0x1d10 - <unknown>!core::result::Result<T,E>::unwrap::h8771871f18bd21c1
    9: 0x2977 - <unknown>!preview2_tcp_bind::test_tcp_bind_specific_port::h06839cc116536f73
   10: 0x4b41 - <unknown>!preview2_tcp_bind::main::h1c857dbb109c43d1
   11: 0x17c5 - <unknown>!core::ops::function::FnOnce::call_once::hc44e1040ccca19f2
   12: 0x179c - <unknown>!std::sys_common::backtrace::__rust_begin_short_backtrace::h31f4e51a9e14bc5d
   13: 0x187d - <unknown>!std::rt::lang_start::{{closure}}::h91ee669c4893c2a3
   14: 0xb2d5 - <unknown>!std::rt::lang_start_internal::h394de9c4666f4612
   15: 0x1828 - <unknown>!std::rt::lang_start::h47a12d0663af1965
   16: 0x5109 - <unknown>!__main_void
   17: 0x1777 - <unknown>!_start
   18: 0x2dd4ed - wit-component:adapter:wasi_snapshot_preview1!wasi:cli/run@0.2.0-rc-2023-11-05#run
note: using the `WASMTIME_BACKTRACE_DETAILS=1` environment variable may show more debugging information

Caused by:
    wasm trap: wasm `unreachable` instruction executed
stack backtrace:
   0: rust_begin_unwind
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\std\src/panicking.rs:595:5
   1: core::panicking::panic_fmt
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\core\src/panicking.rs:67:14
   2: core::result::unwrap_failed
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\core\src/result.rs:1652:5
   3: core::result::Result<T,E>::unwrap
   4: all::sync::preview2_tcp_bind::test_impl
   5: all::sync::preview2_tcp_bind
   6: all::sync::preview2_tcp_bind::{{closure}}
   7: core::ops::function::FnOnce::call_once
   8: core::ops::function::FnOnce::call_once
             at /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library\core\src\ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.


failures:
    async_::preview2_tcp_bind
    sync::preview2_tcp_bind

test result: FAILED. 170 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 268.63s

Although this doesn't actually fix that failure. I'd probably have to open up Windows to debug that specific failure a bit more.

[fitzgen]

Redirecting review to @pchickey since I'm not familiar with this corner of the project.

[sunfishcode]

LGTM.