[Perl/perl5] 4cfb14: locale.c: Move S_update_PL_curlocales()

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 4cfb14d6002a7da98a32388d6e3a72a6929f4181
      
https://github.com/Perl/perl5/commit/4cfb14d6002a7da98a32388d6e3a72a6929f4181
  Author: Karl Williamson <k...@cpan.org>
  Date:   2023-09-13 (Wed, 13 Sep 2023)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move S_update_PL_curlocales()

 Prior to this commit, it was only for POSIX 2008, but a future commit
 will want to use it when not POSIX 2008.