chore: update OpenAPI spec from monorepo (#770)

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

Author: openrouter-docs-sync[bot]

.speakeasy/in.openapi.yaml

@@ -4585,6 +4585,7 @@ components:
         - 'together'
         - 'upstage'
         - 'venice'
+        - 'voyageai'
         - 'wafer'
         - 'wandb'
         - 'wandb-legacy'
@@ -28685,6 +28686,7 @@ paths:
               - 'together'
               - 'upstage'
               - 'venice'
+              - 'voyageai'
               - 'wafer'
               - 'wandb'
               - 'wandb-legacy'