Bump gts from 5.3.1 to 6.0.2

Bumps [gts](https://github.com/google/gts) from 5.3.1 to 6.0.2.
- [Release notes](https://github.com/google/gts/releases)
- [Changelog](https://github.com/google/gts/blob/main/CHANGELOG.md)
- [Commits](google/gts@v5.3.1...v6.0.2)

---
updated-dependencies:
- dependency-name: gts
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -82,7 +82,7 @@
     "@types/yargs": "^17.0.4",
     "del": "^6.0.0",
     "extract-zip": "^2.0.1",
-    "gts": "^5.0.0",
+    "gts": "^6.0.2",
     "jest": "^29.4.1",
     "minipass": "7.1.2",
     "npm-run-all": "^4.1.5",