Bump trybuild from 1.0.86 to 1.0.88

Bumps [trybuild](https://github.com/dtolnay/trybuild) from 1.0.86 to 1.0.88.
- [Release notes](https://github.com/dtolnay/trybuild/releases)
- [Commits](dtolnay/trybuild@1.0.86...1.0.88)

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

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