Update to 1.13
    
    - New upstream release 1.13
      - Added missing abstract for kwalitee-metrics script
      - No longer issuing a warning if the test is running from xt/ (see v1.10)
    - BR:/R: perl(Dist::CheckConflicts) ≥ 0.02
    - Bump perl(Module::Build::Tiny) version requirement to 0.026
    - BR: perl(CPAN::Meta::Check) ≥ 0.007 for the test suite