Bumps the deps group with 4 updates: [serde](https://github.com/serde-rs/serde), [serde_json](https://github.com/serde-rs/json), [syn](https://github.com/dtolnay/syn) and [trybuild](https://github.com/dtolnay/trybuild).


Updates `serde` from 1.0.203 to 1.0.204
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.203...v1.0.204)

Updates `serde_json` from 1.0.119 to 1.0.120
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](serde-rs/json@v1.0.119...v1.0.120)

Updates `syn` from 2.0.68 to 2.0.69
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](dtolnay/syn@2.0.68...2.0.69)

Updates `trybuild` from 1.0.96 to 1.0.97
- [Release notes](https://github.com/dtolnay/trybuild/releases)
- [Commits](dtolnay/trybuild@1.0.96...1.0.97)

---
updated-dependencies:
- dependency-name: serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: deps
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: deps
- dependency-name: syn
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: deps
- dependency-name: trybuild
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: deps
...

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