Update Bytes.java

Added missing import

src/main/java/com/mergebase/log4j/Bytes.java

@@ -4,10 +4,10 @@
 
 import java.io.ByteArrayInputStream;
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UncheckedIOException;
-import java.nio.file.Files;
 
 public class Bytes {