Don't create StupsTokenComponent in NakadiClientEncodingIT

nakadi-producer-spring-boot-starter/src/test/java/org/zalando/nakadiproducer/NakadiClientContentEncodingIT.java

@@ -5,6 +5,7 @@
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
 import org.zalando.fahrschein.http.api.ContentEncoding;
 import org.zalando.fahrschein.http.api.RequestFactory;
 import org.zalando.nakadiproducer.config.EmbeddedDataSourceConfig;
@@ -25,6 +26,11 @@
 )
 public class NakadiClientContentEncodingIT {
 
+    // Avoid errors in the logs from the AccessTokenRefresher. As we are not actually submitting
+    // to Nakadi, this will never be used.
+    @MockBean
+    private AccessTokenProvider tokenProvider;
+
     @Autowired
     private RequestFactory requestFactory;