Bump syn from 2.0.77 to 2.0.79 in the known_good_semver group

Bumps the known_good_semver group with 1 update: [syn](https://github.com/dtolnay/syn).


Updates `syn` from 2.0.77 to 2.0.79
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](dtolnay/syn@2.0.77...2.0.79)

---
updated-dependencies:
- dependency-name: syn
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: known_good_semver
...

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