[Perl/perl5] facfab: perldelta: bump Data::Dumper version in v5.34.0

[Ricardo Signes via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: facfab624d9f5f04cb29c9106390941e2b8263de
      
https://github.com/Perl/perl5/commit/facfab624d9f5f04cb29c9106390941e2b8263de
  Author: Ricardo Signes <rjbs@semiotic.systems>
  Date:   2021-05-14 (Fri, 14 May 2021)

  Changed paths:
    M pod/perldelta.pod

  Log Message:
  -----------
  perldelta: bump Data::Dumper version in v5.34.0