chore: update OpenAPI spec [sdk-bot]

Author: OpenRouter SDK Bot

.speakeasy/in.openapi.yaml

@@ -20187,6 +20187,7 @@ components:
         - openai-responses-v1
         - azure-openai-responses-v1
         - xai-responses-v1
+        - meta-responses-v1
         - anthropic-claude-v1
         - google-gemini-v1
         - null