chore(deps): bump clsx from 2.0.0 to 2.1.0 in /testsite

Bumps [clsx](https://github.com/lukeed/clsx) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/lukeed/clsx/releases)
- [Commits](lukeed/clsx@v2.0.0...v2.1.0)

---
updated-dependencies:
- dependency-name: clsx
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

testsite/package-lock.json

@@ -18,7 +18,7 @@
     "@mdx-js/react": "^3.0.0",
     "@stoplight/json-ref-resolver": "^3.1.6",
     "ajv": "^8.12.0",
-    "clsx": "^2.0.0",
+    "clsx": "^2.1.0",
     "docusaurus-json-schema-plugin": "file:..",
     "js-base64": "^3.7.5",
     "json-schema-faker": "^0.5.4",