Refactor hashCompare to use try-with-resources

[kayerajava]

Wrapped "FileInputStream" in a try-with-resources block to ensure the stream
is always closed after use, even if an exception occurs.
Prevents file descriptor leaks under heavy load and fixes potential file lock issues on Windows.

[Lumine1909]

Thank you for that pr!

Seems there is an indentation issue, the added lines contain an extra indent.
In addition, the close of the stream parameter in createChecksum can also be deleted:

    @NotNull
    public static UUID createChecksum(final @NotNull InputStream fis) throws NoSuchAlgorithmException, IOException {
        final byte[] buffer = new byte[4096];
        final MessageDigest messageDigest = MessageDigest.getInstance("MD5");
        int numRead;

        do {
            numRead = fis.read(buffer);
            if (numRead > 0) {
                messageDigest.update(buffer, 0, numRead);
            }
        } while (numRead != -1);

-       fis.close();
        return UUID.nameUUIDFromBytes(messageDigest.digest());
    }