fix: set explicitly

Author: astandrik

src/services/api/streaming.ts

@@ -73,7 +73,7 @@ export class StreamingAPI extends BaseYdbAPI {
             method: 'POST',
             signal: options.signal,
             headers,
-            credentials: this.withCredentials ? 'include' : undefined,
+            credentials: this.withCredentials ? 'include' : 'same-origin',
             body: JSON.stringify(body),
         });