Bump winit from 0.29.15 to 0.30.3

Bumps [winit](https://github.com/rust-windowing/winit) from 0.29.15 to 0.30.3.
- [Release notes](https://github.com/rust-windowing/winit/releases)
- [Changelog](https://github.com/rust-windowing/winit/blob/master/CHANGELOG.md)
- [Commits](rust-windowing/winit@v0.29.15...v0.30.3)

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

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Author: dependabot[bot]