build(deps-dev): bump knip from 5.37.1 to 5.39.2

Bumps [knip](https://github.com/webpro-nl/knip/tree/HEAD/packages/knip) from 5.37.1 to 5.39.2.
- [Release notes](https://github.com/webpro-nl/knip/releases)
- [Changelog](https://github.com/webpro-nl/knip/blob/main/packages/knip/.release-it.json)
- [Commits](https://github.com/webpro-nl/knip/commits/5.39.2/packages/knip)

---
updated-dependencies:
- dependency-name: knip
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -88,7 +88,7 @@
     "eslint-plugin-json": "^4.0.0",
     "fta-cli": "^2.0.0",
     "http-server": "^14.1.1",
-    "knip": "^5.36.3",
+    "knip": "^5.39.2",
     "lighthouse": "^12.1.0",
     "markdownlint-cli": "^0.42.0",
     "mocha": "^10.8.2",