Update AI Agent

curl --request PATCH \
  --url https://api.wacht.dev/ai-agents/{agent_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "description": "<string>",
  "model": "<string>",
  "system_prompt": "<string>",
  "temperature": 1,
  "max_tokens": 123,
  "tools": [
    "<string>"
  ],
  "knowledge_bases": [
    "<string>"
  ],
  "is_active": true
}
'

{
  "id": "<string>",
  "name": "Customer Support Agent",
  "description": "AI agent for handling customer support inquiries",
  "model": "gpt-4",
  "system_prompt": "<string>",
  "temperature": 0.7,
  "max_tokens": 1000,
  "tools": [
    "<string>"
  ],
  "knowledge_bases": [
    "<string>"
  ],
  "is_active": true,
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}