python3: upgrade 3.8.9 -> 3.8.10

python3: upgrade 3.8.9 -> 3.8.10

Release Date: May 3, 2021

This is the tenth and final regular maintenance release of Python 3.8

Note: The release you're looking at is Python 3.8.10, a bugfix release for the
legacy 3.8 series. Python 3.9 is now the latest feature release series of
Python 3.

FIXME:
AssertionError: Failed ptests:
{'python3': ['test_record_extensions', 'test_build_ext']}

References:
https://www.python.org/downloads/release/python-3810/
https://docs.python.org/release/3.8.10/whatsnew/changelog.html

Signed-off-by: Tim Orling <timothy.t.orling@intel.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>