chore(deps): Bump the production-dependencies-major group with 2 updates

Bumps the production-dependencies-major group with 2 updates: [@next/third-parties](https://github.com/vercel/next.js/tree/HEAD/packages/third-parties) and [next](https://github.com/vercel/next.js).


Updates `@next/third-parties` from 14.2.15 to 15.0.0
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v15.0.0/packages/third-parties)

Updates `next` from 14.2.15 to 15.0.0
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.15...v15.0.0)

---
updated-dependencies:
- dependency-name: "@next/third-parties"
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: production-dependencies-major
- dependency-name: next
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: production-dependencies-major
...

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

apps/web/package.json

@@ -19,12 +19,12 @@
   "dependencies": {
     "@google-analytics/data": "4.9.0",
     "@heroicons/react": "2.1.5",
-    "@next/third-parties": "14.2.15",
+    "@next/third-parties": "15.0.0",
     "@partiguiden/party-data": "workspace:*",
     "@sentry/nextjs": "8.34.0",
     "@supercharge/promise-pool": "3.2.0",
     "cheerio": "1.0.0",
-    "next": "14.2.15",
+    "next": "15.0.0",
     "next-themes": "0.3.0",
     "react": "18.3.1",
     "react-dom": "18.3.1",