Update fixed_rate@1s to fixed_rate@1000ms in payload reference

Co-Authored-By: Nidhi Singh <nidhi2894@gmail.com>

Author: devin-ai-integration[bot]

apps/developer-hub/content/docs/price-feeds/pro/payload-reference.mdx

@@ -245,7 +245,7 @@ Pyth Pro offers multiple delivery channels to match your latency and frequency r
 | `fixed_rate@1ms`   | Updates every 1 millisecond                                                                    | Ultra-low latency applications              |
 | `fixed_rate@50ms`  | Updates every 50 milliseconds                                                                  | Low-latency trading systems                 |
 | `fixed_rate@200ms` | Updates every 200 milliseconds                                                                 | Standard trading applications               |
-| `fixed_rate@1s`    | Updates every 1 second                                                                         | General applications, dashboards            |
+| `fixed_rate@1000ms`    | Updates every 1 second                                                                         | General applications, dashboards            |
 
 ## Signature Schemes and Binary Formats