`noxfile.py` adjustments in template

[joshuadavidthomas]

• when choosing a subset of Django versions, make sure the corresponding Python version is included for the skips

  • e.g. if Django 5.0 is included, Python 3.10 should at least appear in the list at the top of the file

    PY310 = "3.10"
    ...
    DJ50 = "5.0"
    ...
    if django == DJ50 and version(python) < version(PY310):
      # Django 5.0 requires Python 3.10+
      return True

• make sure the whitespace is consistant when a subset of Django versions are chosen

  • if Django 3.2 is not chosen, make sure that middle chunk removes the whitespace

    # this is what it looked like
    def should_skip(python: str, django: str) -> bool:
      """Return True if the test should be skipped"""
    
       if django == DJMAIN and version(python) < version(DJMAIN_MIN_PY):
           # Django main requires Python 3.10+
           return True
    
        if django == DJ50 and version(python) < version(PY310):
            # Django 5.0 requires Python 3.10+
            return True
    
        return False