feat(deps): bump sortablejs from 1.15.3 to 1.15.4

Bumps [sortablejs](https://github.com/SortableJS/Sortable) from 1.15.3 to 1.15.4.
- [Release notes](https://github.com/SortableJS/Sortable/releases)
- [Commits](SortableJS/Sortable@1.15.3...1.15.4)

---
updated-dependencies:
- dependency-name: sortablejs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -63,7 +63,7 @@
     "react-sortablejs": "^6.1.4",
     "recoil": "^0.7.7",
     "recoil-outside": "^0.1.1",
-    "sortablejs": "^1.15.3",
+    "sortablejs": "^1.15.4",
     "swiper": "^11.1.15",
     "use-pwa2": "^0.2.0",
     "validator": "^13.12.0",