build(deps-dev): Bump dependency knip to v6.26.0

Author: renovate[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "github-markdown-css": "5.9.0",
     "handlebars": "4.7.9",
     "js-yaml": "4.2.0",
-    "knip": "6.22.0",
+    "knip": "6.26.0",
     "lockfile-lint": "5.0.0",
     "showdown": "2.1.0",
     "showdown-footnotes": "2.1.2",