Add @SuppressWarnings

Author: garydgregory

src/main/java/org/apache/commons/codec/digest/DigestUtils.java

@@ -1496,6 +1496,7 @@ public static MessageDigest updateDigest(final MessageDigest digest, final Path
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
+    @SuppressWarnings("resource") // Closing RandomAccessFile closes the channel.
     public static MessageDigest updateDigest(final MessageDigest digest, final RandomAccessFile data)
             throws IOException {
         return updateDigest(digest, data.getChannel());