testing/perl-*: claim maintainership

These are the 10 maintainerless Perl aports in testing, according to https://pkgs.alpinelinux.org/packages?name=perl*&branch=edge&repo=testing&arch=x86_64&maintainer=None :

• perl-config-general
• perl-io-socket-ip
• perl-memory-process
• perl-memory-usage
• perl-lockfile-simple
• perl-net-mpd
• perl-number-misc
• perl-string-util
• perl-test-toolbox
• perl-xml-bare