contrib: install PyOxidizer 0.17.0
This pulls in some changes we want to improve Windows MSI installers.
This will need separate enhancements to the pyoxidizer.bzl. But those will
be handled in a separate changeset.
Differential Revision: https://phab.mercurial-scm.org/D11357
edition = "2018"
max_width = 79
wrap_comments = true
error_on_line_overflow = true