Update to 2.1.7

• While I'm here, add NO_ARCH

Changes: https://github.com/gitpython-developers/GitPython/blob/master/doc/source/changes.rst

		https://github.com/gitpython-developers/GitPython/commits/master

PR: 222766
Differential Revision: https://reviews.freebsd.org/D12584
Submitted by: Le Baron d'Merde <lbdm@privacychain.ch>
Approved by: maintainer (timeout, 19 days)