Python & PyPy versions needs to be updated to latest stable

[auvipy]

I have added PR for pypy update but other python versions should be updated & upgraded as well in e2e tests

[nikita-bykov]

Hello @auvipy. Thanks for your contribution!
The main purpose of these tests is to make sure that the action works as expected with all possible ways of specifying versions, for example: pypy-3.7, pypy-3.7-v7.3.5, pypy-3.7-v7.3.x, pypy-3.7-nightly and the same for Python versions.
For now, we would not like to expand test matrix with other versions.

[posita]

What about pypy-3.8? Follow-up: It looks like #256 helps with that.

[nikita-bykov]

Hello @posita, this issue is related to "update pypy test version as 7.3.6 is a hotfix #268" PR.
The PR you provided is related to documentation and will be reviewed separately.

[nikita-bykov]

@auvipy I am going to close the issue and the PR, but feel free to contact us if you have any questions.