[Perl/perl5] 31e187: Mark Digest::MD5 as uncustomized

[Leon Timmermans via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 31e187340716a1b729ab3e475dd9a578b28e402f
      
https://github.com/Perl/perl5/commit/31e187340716a1b729ab3e475dd9a578b28e402f
  Author: Leon Timmermans <faw...@gmail.com>
  Date:   2024-02-06 (Tue, 06 Feb 2024)

  Changed paths:
    M Porting/Maintainers.pl
    M t/porting/customized.dat

  Log Message:
  -----------
  Mark Digest::MD5 as uncustomized