groq maps to openai usage processing (#4761)

Author: colegottdank

packages/cost/usage/getUsageProcessor.ts

@@ -2,11 +2,14 @@ import { OpenAIUsageProcessor } from "./openAIUsageProcessor";
 import { IUsageProcessor } from "./IUsageProcessor";
 import { ModelProviderName } from "../models/providers";
 
-export function getUsageProcessor(provider: ModelProviderName): IUsageProcessor {
+export function getUsageProcessor(
+  provider: ModelProviderName
+): IUsageProcessor {
   switch (provider) {
     case "openai":
+    case "groq":
       return new OpenAIUsageProcessor();
     default:
       throw new Error(`Usage processor not found for provider: ${provider}`);
   }
-}
+}