chore(deps): bump syn from 1.0.109 to 2.0.52

Bumps [syn](https://github.com/dtolnay/syn) from 1.0.109 to 2.0.52.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](dtolnay/syn@1.0.109...2.0.52)

---
updated-dependencies:
- dependency-name: syn
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>