Update to 0.34
    
    - New upstream release 0.34
      - Support anonymous stashes on newer perl versions
      - Prevent harmful effects from invalid settings for
        $ENV{PACKAGE_STASH_IMPLEMENTATION}
      - Switch to Module::Implementation
    - BR: perl(Module::Implementation) ≥ 0.06
    - BR: perl(base) for test suite
    - Bump Package::Stash::XS version requirement to 0.26
    - Explicitly run extra tests (except on RHEL ≥ 7, where the necessary
      build dependencies may not be available)
    - Update patch for building with old Test::More version in EPEL-5