build(deps): bump winit from 0.28.3 to 0.28.6 (#30156)

Bumps [winit](https://github.com/rust-windowing/winit) from 0.28.3 to 0.28.6.
- [Release notes](https://github.com/rust-windowing/winit/releases)
- [Changelog](https://github.com/rust-windowing/winit/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-windowing/winit/compare/v0.28.3...v0.28.6)

---
updated-dependencies:
- dependency-name: winit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

ports/winit/Cargo.toml

@@ -66,7 +66,7 @@ shellwords = "1.0.0"
 surfman = { workspace = true, features = ["sm-x11", "sm-raw-window-handle"] }
 tinyfiledialogs = "3.0"
 webxr = { git = "https://github.com/servo/webxr", features = ["ipc", "glwindow", "headless"] }
-winit = "0.28.3"
+winit = "0.28.6"
 
 [target.'cfg(any(target_os = "linux", target_os = "windows"))'.dependencies]
 image = { workspace = true }