Tests for multiple OS families

[TheTechromancer]

Addresses https://github.com/blacklanternsecurity/bbot/issues/1469.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92%. Comparing base (6f77f91) to head (efcdaff). Report is 4 commits behind head on dev.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #1476 +/- ## ===================================== - Coverage 92% 92% -0% ===================================== Files 327 327 Lines 21088 21112 +24 ===================================== + Hits 19368 19373 +5 - Misses 1720 1739 +19 ```

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[TheTechromancer]

@domwhewell-sage we've run into a potential issue with these tests. In order to test BBOT on multiple OS families, we need to run the tests inside a docker container. This will cause the dastardly tests to fail, since we can't do docker-in-docker.

🤔🤔

[domwhewell-sage]

Do you think it would be possible to add this to the dastardly test

@pytest.mark.skipif(not subprocess.run(['docker', '--version'], capture_output=True).returncode == 0,
                    reason="Docker is not installed")

[TheTechromancer]

Hmm I guess we could exclude it from the os family tests, but modules like dastardly with big dependencies are the reason we need those tests to begin with.

I'll see about excluding it for now, and maybe we can figure out a better solution further down the road.