chore: update OpenAPI spec from monorepo (#686)

Co-authored-by: OpenRouter SDK Bot <sdk-bot@openrouter.ai>

Author: openrouter-docs-sync[bot]

.speakeasy/in.openapi.yaml

@@ -21769,6 +21769,7 @@ components:
         - 'openai-responses-v1'
         - 'azure-openai-responses-v1'
         - 'bedrock-openai-responses-v1'
+        - 'bedrock-xai-responses-v1'
         - 'xai-responses-v1'
         - 'meta-responses-v1'
         - 'anthropic-claude-v1'