chore: update OpenAPI spec from monorepo (#567)

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

Author: openrouter-docs-sync[bot]

.speakeasy/in.openapi.yaml

@@ -24185,17 +24185,26 @@ components:
               - '1120x480'
               - '1280x720'
               - '1440x1080'
+              - '1440x1440'
+              - '1440x1920'
+              - '1440x2160'
+              - '1440x2560'
+              - '1440x3360'
               - '1620x1080'
               - '1680x720'
               - '1920x1080'
+              - '1920x1440'
+              - '2160x1440'
               - '2160x2160'
               - '2160x2880'
               - '2160x3240'
               - '2160x3840'
               - '2160x5040'
               - '2520x1080'
+              - '2560x1440'
               - '2880x2160'
               - '3240x2160'
+              - '3360x1440'
               - '3840x2160'
               - '5040x2160'
             type: 'string'