build(deps-dev): bump knip from 5.25.2 to 5.30.2

Bumps [knip](https://github.com/webpro-nl/knip/tree/HEAD/packages/knip) from 5.25.2 to 5.30.2.
- [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/5.30.2/packages/knip)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -31,7 +31,7 @@
     "@typescript-eslint/parser": "^7.15.0",
     "eslint": "^8.57.0",
     "eslint-plugin-svelte": "^2.41.0",
-    "knip": "^5.25.2",
+    "knip": "^5.30.2",
     "markdownlint-cli": "^0.41.0",
     "spellchecker-cli": "^6.2.0",
     "svelte": "^4.2.18",