(opt)(headless)Use commons-lang3 StringUtils.

Author: jerryjzhang

headless/server/src/main/java/com/tencent/supersonic/headless/server/persistence/repository/impl/DictRepositoryImpl.java

@@ -17,12 +17,11 @@
 import com.tencent.supersonic.headless.server.utils.DictUtils;
 import com.xkzhangsan.time.utils.CollectionUtil;
 import lombok.extern.slf4j.Slf4j;
-import org.codehaus.plexus.util.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Repository;
 import org.springframework.util.CollectionUtils;
 
-import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Objects;