Bump alpinejs from 3.13.1 to 3.15.12 in /assets

Bumps [alpinejs](https://github.com/alpinejs/alpine/tree/HEAD/packages/alpinejs) from 3.13.1 to 3.15.12.
- [Release notes](https://github.com/alpinejs/alpine/releases)
- [Commits](https://github.com/alpinejs/alpine/commits/v3.15.12/packages/alpinejs)

---
updated-dependencies:
- dependency-name: alpinejs
  dependency-version: 3.15.12
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

assets/package-lock.json

@@ -22,7 +22,7 @@
     "@tailwindcss/typography": "^0.4.1",
     "@tanstack/react-query": "^5.51.1",
     "abortcontroller-polyfill": "^1.7.3",
-    "alpinejs": "^3.13.1",
+    "alpinejs": "^3.15.12",
     "chart.js": "^3.3.2",
     "chartjs-plugin-datalabels": "^2.2.0",
     "classnames": "^2.3.1",