Incompatible with PHP 8

[danepowell]

This package throws warnings if used in PHP 8:

Warning: Private methods cannot be final as they are never overridden by other classes in /Users/dane.powell/src/acquia/cli/vendor/marc-mabe/php-enum/src/Enum.php on line 73

This is due to an outdated dependency: "marc-mabe/php-enum" : "~2.2",

Updating this to support php-enum 4.6.1 I think would fix this.

[grasmash]

https://github.com/LTD-Beget/dns-zone-configurator/pull/38/files

[danepowell]

#39 may resolve this