chore: update OpenAPI spec from monorepo (#642)

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

Author: openrouter-docs-sync[bot]

.speakeasy/in.openapi.yaml

@@ -2908,7 +2908,7 @@ components:
             total_requests: 2109
             total_tokens: '9876543'
         meta:
-          as_of: '2026-05-12T02:00:00Z'
+          as_of: '2026-05-12T02:00:00.000Z'
           end_date: '2026-05-11'
           start_date: '2026-04-12'
           version: 'v1'
@@ -21411,14 +21411,14 @@ components:
       type: 'object'
     RankingsDailyMeta:
       example:
-        as_of: '2026-05-12T02:00:00Z'
+        as_of: '2026-05-12T02:00:00.000Z'
         end_date: '2026-05-11'
         start_date: '2026-04-12'
         version: 'v1'
       properties:
         as_of:
           description: 'ISO-8601 timestamp of when the response was generated. Reflects data-freshness because the underlying materialized view continuously ingests upstream events.'
-          example: '2026-05-12T02:00:00Z'
+          example: '2026-05-12T02:00:00.000Z'
           type: 'string'
         end_date:
           description: 'Resolved end of the date window (UTC, inclusive).'
@@ -21449,7 +21449,7 @@ components:
             model_permaslug: 'anthropic/claude-3.5-sonnet-20241022'
             total_tokens: '9876543'
         meta:
-          as_of: '2026-05-12T02:00:00Z'
+          as_of: '2026-05-12T02:00:00.000Z'
           end_date: '2026-05-11'
           start_date: '2026-04-12'
           version: 'v1'