[CI] Auto commit changes from spotless

Author: elasticsearchmachine

server/src/main/java/org/elasticsearch/threadpool/DefaultBuiltInExecutorBuilders.java

@@ -16,7 +16,6 @@
 import org.elasticsearch.index.engine.ThreadPoolMergeScheduler;
 import org.elasticsearch.threadpool.internal.BuiltInExecutorBuilders;
 
-import java.time.Duration;
 import java.util.HashMap;
 import java.util.Map;