Bump next from 15.5.14 to 15.5.15

Bumps [next](https://github.com/vercel/next.js) from 15.5.14 to 15.5.15.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.14...v15.5.15)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.15
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package.json

@@ -54,7 +54,7 @@
     "fuse.js": "^7.1.0",
     "marked": "^12.0.2",
     "moment-timezone": "^0.5.43",
-    "next": "15.5.14",
+    "next": "15.5.15",
     "react": "^18",
     "react-dom": "^18",
     "sharp": "^0.33.3"