Fix broken anthropic link (#21009)

Author: danieljvdm

src/content/docs/agents/api-reference/using-ai-models.mdx

@@ -13,7 +13,7 @@ Agents can communicate with AI models hosted on any provider, including:
 * [Workers AI](/workers-ai/)
 * The [AI SDK](https://sdk.vercel.ai/docs/ai-sdk-core/overview)
 * [OpenAI](https://platform.openai.com/docs/quickstart?language=javascript)
-* [Anthropic](https://docs.anthropic.com/en/api/client-sdks#typescript
+* [Anthropic](https://docs.anthropic.com/en/api/client-sdks#typescript)
 * [Google's Gemini](https://ai.google.dev/gemini-api/docs/openai)
 
 You can also use the model routing features in [AI Gateway](/ai-gateway/) to route across providers, eval responses, and manage AI provider rate limits.