OZG-7573 OZG-7991 Fix sonarqube warnings

ozgcloud-common-lib/src/main/java/de/ozgcloud/common/binaryfile/StreamExclusiveFileSender.java

@@ -64,11 +64,13 @@ class StreamExclusiveFileSender<Q, S> extends StreamingFileSender<Q, S> {
 		return requestObserver;
 	}
 
+	@Override
 	public void cancelOnTimeout() {
 		super.cancelOnTimeout();
 		requestObserver.onError(new TechnicalException("Timeout on waiting for upload."));
 	}
 
+	@Override
 	public void cancelOnError(Throwable t) {
 		super.cancelOnError(t);
 		requestObserver.onError(t);