chore(deps): update dependency knip to v6 (#1154)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

bun.lock

@@ -61,7 +61,7 @@
     "@types/unist": "3.0.3",
     "@vitest/coverage-v8": "4.1.0",
     "husky": "9.1.7",
-    "knip": "5.86.0",
+    "knip": "6.0.1",
     "lost-pixel": "3.22.0",
     "scaffdog": "4.1.0",
     "svelte-check": "4.4.5",