Update to 0.39

Upstream changes:
0.39 - Sun May 21 18:58:33 2023
      Adding support for test suite in non english locales
      Test and documentation fixes

0.38 - Thu May 11 05:52:03 2023
      Adding support for github actions
      Improving test support

0.37 - Wed May 10 21:48:03 2023
      Adding urandom_ub method for unbuffered sysreads
      Copying with possible?? failures in reading from /dev/urandom
      Improved coverage testing

(wen)