Python 3.11 compatibility

[pjbull]

Python 3.11 was released in October 2022, so we should support it.

• Adds 3.11 to support list in setup.py
• Adds 3.11 to CI test matrix
• Adds alias for scandir so tests pass with updated CPython internal pathlib implementation

Bonus:

• New version of black had some whitespace changes it needed to pass.

[github-actions]

🚀 Deployed on https://deploy-preview-317--gallant-agnesi-5f7bb3.netlify.app

[codecov-commenter]

Codecov Report

Merging #317 (3512708) into master (caeeb50) will increase coverage by 0.0%.
The diff coverage is 100.0%.

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Additional details and impacted files

@@          Coverage Diff           @@
##           master    #317   +/-   ##
======================================
  Coverage    94.2%   94.2%           
======================================
  Files          21      21           
  Lines        1395    1396    +1     
======================================
+ Hits         1315    1316    +1     
  Misses         80      80           

Impacted Files	Coverage Δ
cloudpathlib/azure/azblobclient.py	93.8% <ø> (ø)
cloudpathlib/gs/gsclient.py	94.3% <ø> (ø)
cloudpathlib/cloudpath.py	92.6% <100.0%> (+<0.1%)	⬆️