[Perl/perl5] be4dc1: Bump IO to 1.50 after production release to CPAN

[Todd Rinaldo via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: be4dc14bee5097b5fc4640a7b718b0613d326b6f
      
https://github.com/Perl/perl5/commit/be4dc14bee5097b5fc4640a7b718b0613d326b6f
  Author: Todd Rinaldo <to...@cpan.org>
  Date:   2022-05-03 (Tue, 03 May 2022)

  Changed paths:
    M Porting/Maintainers.pl
    M dist/IO/ChangeLog
    M dist/IO/IO.pm

  Log Message:
  -----------
  Bump IO to 1.50 after production release to CPAN