chore(deps): bump next from 15.1.7 to 16.1.5

Bumps [next](https://github.com/vercel/next.js) from 15.1.7 to 16.1.5.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.1.7...v16.1.5)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.1.5
  dependency-type: direct:production
...

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

Author: dependabot[bot]

examples/nextjs-ssr/package.json

@@ -18,7 +18,7 @@
     "@firebase-oss/ui-styles": "workspace:*",
     "@firebase-oss/ui-translations": "workspace:*",
     "firebase": "^11.10.0",
-    "next": "15.1.7",
+    "next": "16.1.5",
     "react": "19.2.1",
     "react-dom": "19.2.1",
     "server-only": "^0.0.1"

examples/nextjs/package.json

@@ -18,7 +18,7 @@
     "@firebase-oss/ui-styles": "workspace:*",
     "@firebase-oss/ui-translations": "workspace:*",
     "firebase": "catalog:",
-    "next": "15.1.7",
+    "next": "16.1.5",
     "react": "catalog:",
     "react-dom": "catalog:",
     "server-only": "^0.0.1"