Auto merge of #25983 - vbkaisetsu:fix/come-back-21532, r=jdm

Update x11-dl to pickup the fix for x11 startup crash (recurrence of #21530)

This branch updates x11-dl to 2.18.5 to get erlepereira/x11-rs#99

```
% ./mach run --release https://duckduckgo.com
attempted to leave type `std::mem::ManuallyDrop<xlib_xcb::Xlib_xcb>` uninitialized, which is invalid (thread main, at /rustc/45ebd5808afd3df7ba842797c0fcd4447ddf30fb/src/libcore/mem/mod.rs:536)
stack backtrace:
   0: servo::backtrace::print
   1: servo::main::{{closure}}
   2: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:513
   3: rust_begin_unwind
             at src/libstd/panicking.rs:417
   4: core::panicking::panic_fmt
             at src/libcore/panicking.rs:111
   5: core::panicking::panic
             at src/libcore/panicking.rs:54
   6: x11_dl::xlib_xcb::Xlib_xcb::open
   7: winit::platform::platform::x11::xdisplay::XConnection::new
   8: std::sync::once::Once::call_once::{{closure}}
   9: std::sync::once::Once::call_inner
             at src/libstd/sync/once.rs:416
  10: winit::platform::platform::EventsLoop::new_x11
  11: winit::platform::platform::EventsLoop::new
  12: winit::EventsLoop::new
  13: servo::events_loop::EventsLoop::new
  14: servo::app::App::run
  15: servo::main
  16: std::rt::lang_start::{{closure}}
  17: std::rt::lang_start_internal::{{closure}}
             at src/libstd/rt.rs:52
      std::panicking::try::do_call
             at src/libstd/panicking.rs:329
      std::panicking::try::do_try
             at src/libstd/panicking.rs:285
      std::panicking::try
             at src/libstd/panicking.rs:274
      std::panic::catch_unwind
             at src/libstd/panic.rs:394
      std::rt::lang_start_internal
             at src/libstd/rt.rs:51
  18: main
  19: __libc_start_main
  20: _start
Servo exited with return value 101
```

This patch is created by `cargo update -p x11-dl`.

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