fix compile error

Author: martijnvg

benchmarks/src/main/java/org/elasticsearch/benchmark/_nightly/esql/ValuesSourceReaderBenchmark.java

@@ -223,7 +223,7 @@ private static BlockLoader blockLoader(String name) {
                 Lucene.KEYWORD_ANALYZER,
                 new KeywordFieldMapper.Builder(name, IndexVersion.current()).docValues(ft.docValuesType() != DocValuesType.NONE),
                 syntheticSource,
-                useBinaryDocValues
+                false
             ).blockLoader(new MappedFieldType.BlockLoaderContext() {
                 @Override
                 public String indexName() {