Log Message:
Update to 0.52

Upstream changes:
0.52   [2021-02-17]
    - Change bugtracker link to point GitHub issues instead of RT.
    - Remove some old and broken links.
    - Work by (Kaycie Goodman).
    - Test fix (Pali, PR#32).
    - Fix reporting caller information (file+line) when number of tests does
      not match (Pali).
    - Use better class names in t/runtests_return.t (Pali).
    - Fix documentation to be more accurate regarding support and author
      activity (Karen Etheridge).
    - Ensure metadata is processed as v2 (Karen Etheridge).
    - Remove unnecessary shebangs (Karen Etheridge).
    - chmod ugo-x (Karen Etheridge).

0.51   [2019-04-29]
    - Create fail_if_returned_late (Jason Terry, Oaxlin, PR#23)