3.73

• Cleaned up this changes log.
• Added a .mailmap file to organize contributions accurately.
• Ensure all versions are equal and on the current version
• Add the .mailmap to the MANIFEST
• Change the META information to point to the new GH repository
• Add a .perltidyrc to use going forward
• Add hctype.h and pfunc.h to the dist as static files and stop asking
  for them to be built on the user's end.
• Remove t/pod.t from userland testing
• Remove t/pod-coverage.t from userland testing
• Clean up the MANIFEST
• Start testing via GitHub Actions/Workflows
• Protect active parser from being freed (PR 13, RT #115034)