* Locked requirements using pip-compile:
* existing (test-)requirements.txt ->
(test-)requirements.in
* pip-compile to *-py3[8|10].txt using python3.8
and python3.10.
* Updated tox.ini to use the appropriate merged
requirements-*.txt files.
* updated .gitreview for defaultbranch
Change-Id: I68f198613ce2d1b1728a88a2b16ceef7c8c8c1b9