build: bump next from 14.2.24 to 15.5.0

Bumps [next](https://github.com/vercel/next.js) from 14.2.24 to 15.5.0.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.24...v15.5.0)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -56,7 +56,7 @@
     "is-plain-object": "^5.0.0",
     "js-tokens": "^9.0.0",
     "mongodb": "^6.12.0",
-    "next": "^14.2.12",
+    "next": "^15.5.0",
     "node-fetch": "^2.6.1",
     "probot": "^13.4.1",
     "react": "^18.2.0",