Update python-cftime to version 1.6.2 / rev 8 via SR 1032181
    
    https://build.opensuse.org/request/show/1032181
    by user mcepl + dimstar_suse
    Forwarded request #1031655 from yarunachalam
    
    - Update to version 1.6.2
        * num2date should not fail on an empty integer array (issue #287).
        * longdouble keyword in date2num so that a roundtrip from a time to a date
          and back again does not lose microsecond precision when the units require
          the times be encoded as floating point values (PR #284)
        * added strptime method (issue #277).
        * cibuildwheel wheel-building workflow added to github actions by @ocefpaf (triggers binary
          wheel builds and uploads to pypi automatically when GH release created). PR #290.