perl-core/Test-Simple: Fix lack of blocker on Test-Tester bug #577748

perl-core/Test-Simple: Fix lack of blocker on Test-Tester bug #577748

virtual/perl-Test-Simple already correctly blocks dev-perl/Test-Tester

However, this is not enough, because it can intoduce the install order:

  + perl-core/Test-Simple [collision occurs]
  + virtual/perl-Test-Simple (collisions allowed)
  - dev-perl/Test-Tester (remove uncollided)

When the install order needs to be

  + perl-core/Test-Simple (collsions allowed)
  - dev-perl/Test-Tester (remove uncollided)
  + virtual/perl-Test-Simple

Bug: https://bugs.gentoo.org/577748
Reported-By: Jonathan Lovelace
Package-Manager: portage-2.2.28