Fix a checkstyle nit introduced by the last commit

Author: apurtell

hbase-compression/hbase-compression-zstd/src/main/java/org/apache/hadoop/hbase/io/compress/zstd/ZstdCodec.java

@@ -16,6 +16,7 @@
  */
 package org.apache.hadoop.hbase.io.compress.zstd;
 
+import com.github.luben.zstd.Zstd;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -34,8 +35,6 @@
 import org.apache.hadoop.io.compress.Decompressor;
 import org.apache.yetus.audience.InterfaceAudience;
 
-import com.github.luben.zstd.Zstd;
-
 /**
  * Hadoop ZStandard codec implemented with zstd-jni.
  * <p>