build(deps-dev): bump @types/sortablejs from 1.15.8 to 1.15.9

Bumps [@types/sortablejs](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/sortablejs) from 1.15.8 to 1.15.9.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/sortablejs)

---
updated-dependencies:
- dependency-name: "@types/sortablejs"
  dependency-version: 1.15.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package.json

@@ -56,7 +56,7 @@
     "@types/jsdom": "^27.0.0",
     "@types/masonry-layout": "^4.2.8",
     "@types/node": "^24.9.1",
-    "@types/sortablejs": "^1.15.8",
+    "@types/sortablejs": "^1.15.9",
     "@vitest/coverage-istanbul": "^3.2.4",
     "@vitest/coverage-v8": "^3.2.4",
     "autoprefixer": "^10.4.21",