chore(deps): update dependency storybook to v8.6.15 [security]

Author: renovate[bot]

package.json

@@ -75,7 +75,7 @@
     "lint-staged": "15.2.2",
     "prettier": "3.3.2",
     "sst": "2.41.3",
-    "storybook": "8.4.4",
+    "storybook": "8.6.15",
     "ts-jest": "29.1.5",
     "ts-node": "10.9.2",
     "typescript": "5.3.3",