Add 16.0.0-beta.0 to next/third-parties peerDeps (#84741)

Installing `@next/third-parties` warns about peerDeps
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```
Results:
0 errors
41 unmodified
0 skipped
0 ok
Time elapsed: 2.276seconds

✔ Codemods have been applied successfully.
⚠ Found 1 dependency that seem incompatible with the upgraded package versions.
You may have to update these packages to their latest version or file an issue to ask for support of the upgraded libraries.
@next/third-parties 16.0.0-beta.0
  └── ✕ unmet peer next@"^13.0.0 || ^14.0.0 || ^15.0.0": found 16.0.0-beta.0
```

---------

Co-authored-by: vercel[bot] <35613825+vercel[bot]@users.noreply.github.com>

Author: devjiwonchoi

packages/third-parties/package.json

@@ -32,7 +32,7 @@
     "typescript": "5.9.2"
   },
   "peerDependencies": {
-    "next": "^13.0.0 || ^14.0.0 || ^15.0.0",
+    "next": "^13.0.0 || ^14.0.0 || ^15.0.0 || ^16.0.0-beta.0",
     "react": "^18.2.0 || 19.0.0-rc-de68d2f4-20241204 || ^19.0.0"
   }
 }