Bump trybuild from 1.0.49 to 1.0.50 (#4060)

Bumps [trybuild](https://github.com/dtolnay/trybuild) from 1.0.49 to 1.0.50.
- [Release notes](https://github.com/dtolnay/trybuild/releases)
- [Commits](https://github.com/dtolnay/trybuild/compare/1.0.49...1.0.50

)

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

Signed-off-by: dependabot[bot] <[email protected]>

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