Setuptools version (68.2.2) not supported for Py 3.7

[jmetz]

GH Actions build fails for release as Python 3.7 not supported by specified setuptools version https://pypi.org/project/setuptools/68.2.2/ (

imjoy-python-template/requirements_pypi.txt

Line 1 in d6b6fcc

setuptools==68.2.2

).

Suggest switching to Py 3.8 as 3.7 is EOL.

[oeway]

Good point! Feel free to make PR, I will make you in the team too.