build(deps): Bump next in /addons-web-sdk/samples/animation-next-js

Bumps [next](https://github.com/vercel/next.js) from 15.0.2 to 15.1.2.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.0.2...v15.1.2)

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

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

addons-web-sdk/samples/animation-next-js/package.json

@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "@googleworkspace/meet-addons": "^1.1.1",
-    "next": "15.0.2",
+    "next": "15.1.2",
     "react": "^18",
     "react-dom": "^18"
   },