test: tighten deepgram transcription config assertion

extensions/deepgram/realtime-transcription-provider.test.ts

@@ -29,14 +29,15 @@ describe("buildDeepgramRealtimeTranscriptionProvider", () => {
       },
     });
 
-    expect(resolved).toMatchObject({
+    expect(resolved).toEqual({
       apiKey: "dg-key",
+      baseUrl: undefined,
       model: "nova-3",
-      encoding: "mulaw",
+      language: "en-US",
       sampleRate: 8000,
+      encoding: "mulaw",
       interimResults: true,
       endpointingMs: 500,
-      language: "en-US",
     });
   });