Bump next from 14.2.7 to 15.0.3

Bumps [next](https://github.com/vercel/next.js) from 14.2.7 to 15.0.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.7...v15.0.3)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -17,7 +17,7 @@
     "dotenv": "^16.4.5",
     "flotiq-components-react": "^2.0.1",
     "highlight.js": "^11.10.0",
-    "next": "^14.2.7",
+    "next": "^15.0.3",
     "next-compose-plugins": "^2.2.1",
     "next-images": "^1.8.5",
     "next-runtime-dotenv": "^1.5.1",