perl: fix regressions in the end-of-life revisions (#25801)
perl: fix regressions in the end-of-life revisions (#25801)

- perl@:5.24.1 needs zlib@:1.2.8 - shown by more than a dozen tests
  https://rt.cpan.org/Public/Bug/Display.html?id=120134

- perl@:5.26.2 needs gdbm@:1.14.1 - shown by the test suite
  https://rt-archive.perl.org/perl5/Ticket/Display.html?id=133295

- Fix the test case cpan/Time-Local/t/Local.t to use 4-digit years
  http://blogs.perl.org/users/tom_wyant/2020/01/my-y2020-bug.html
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