[WIP] nuage_vspk: fix tests

[Andersson007]

SUMMARY

Fix CI

ISSUE TYPE

• Docs Pull Request

COMPONENT NAME

tests/integration/targets/prepare_nuage_tests/tasks/main.yml

[Andersson007]

    "msg": "stdout: Collecting setuptools\n  Downloading https://files.pythonhosted.org/packages/fc/0a/b486efab52f8ad03c3eca0c998dd3deafba0c39b29e0c49c68a7152c8b2d/setuptools-56.2.0.tar.gz (2.1MB)\n    Complete output from command python setup.py egg_info:\n    Traceback (most recent call last):\n      File \"<string>\", line 1, in <module>\n      File \"setuptools/__init__.py\", line 16, in <module>\n        import setuptools.version\n      File \"setuptools/version.py\", line 1, in <module>\n        import pkg_resources\n      File \"pkg_resources/__init__.py\", line 1367\n        raise SyntaxError(e) from e\n                                ^\n    SyntaxError: invalid syntax\n    \n    ----------------------------------------\n\n:stderr: Command \"python setup.py egg_info\" failed with error code 1 in /tmp/pip-build-6E_IfB/setuptools/\nYou are using pip version 8.1.2, however version 21.1.1 is available.\nYou should consider upgrading via the 'pip install --upgrade pip' command.\n"
}

[Andersson007]

@dericcrago people say that updating setuptools fixes the issue.
click-contrib/click-completion#29
python-pendulum/pendulum#187
ansible/molecule#1859
I failed to update it on the old distros, see the error above.

As we discussed with @felixfontein, now the tests are very redundant in terms of the number of distros involved. We could:

1. remove CentOS 7 and Ubuntu 1604 from the test matrix
2. or use the default container

[felixfontein]

For network modules, just testing with the default container is probably best.