Requirement is pinned for python-miio 0.5.6: defusedxml>=0.6,<0.7

[MartinHjelmare]

Describe the bug

• This library supports an integration in Home Assistant.
• The new pip resolver is more strict in resolving package version conflicts:
  http://pyfound.blogspot.com/2020/03/new-pip-resolver-to-roll-out-this-year.html#what-will-change

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Version information (please complete the following information):

• OS: Linux
• python-miio: 0.5.6

Device information:

To Reproduce
Steps to reproduce the behavior:

(home-assistant) x:~/dev/home-assistant/core$ pip install -r requirements_all.txt
(home-assistant) x:~/dev/home-assistant/core$ pipdeptree -w silence -r -p defusedxml | grep python-miio
 - python-miio==0.5.6 [requires: defusedxml>=0.6,<0.7]

Expected behavior

• To avoid future issues it would be good if this library would change its pinning to allow any higher version and just set a minimum version. Or set a maximum version that is more forgiving.

Console output

[rytilahti]

Good catch! Requiring defusedxml is rather recent addition and I didn't pay enough attention to simply pin on the major version. The linked PR changes allows now all 0.x series to fulfill that requirement.