build(deps): Update openai-php/client requirement || ^0.16

Updates the requirements on [openai-php/client](https://github.com/openai-php/client) to permit the latest version.
- [Release notes](https://github.com/openai-php/client/releases)
- [Changelog](https://github.com/openai-php/client/blob/main/CHANGELOG.md)
- [Commits](openai-php/client@v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: openai-php/client
  dependency-version: 0.16.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

composer.json

@@ -22,7 +22,7 @@
         "cortexphp/model-info": "^0.3",
         "illuminate/collections": "^11.23",
         "mozex/anthropic-php": "^1.1",
-        "openai-php/client": "^0.15",
+        "openai-php/client": "^0.15 || ^0.16",
         "psr-discovery/cache-implementations": "^1.2",
         "psr-discovery/event-dispatcher-implementations": "^1.1",
         "react/async": "^4.3",