Add official support for Python 3.9, 3.10, 3.11

[iMichka]

No description provided.

[codecov-commenter]

Codecov Report

Merging #161 (f17dd92) into develop (54052cb) will not change coverage.
The diff coverage is 98.95%.

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@@           Coverage Diff            @@
##           develop     #161   +/-   ##
========================================
  Coverage    91.69%   91.69%           
========================================
  Files          137      137           
  Lines        10689    10689           
========================================
  Hits          9801     9801           
  Misses         888      888           

Flag	Coverage Δ
unittests	91.69% <98.95%> (ø)

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Files Changed	Coverage Δ
unittests/patcher_tester.py	67.60% <50.00%> (ø)
unittests/algorithms_cache_tester.py	100.00% <100.00%> (ø)
unittests/array_bug_tester.py	95.52% <100.00%> (ø)
unittests/attributes_tester.py	68.08% <100.00%> (ø)
unittests/better_templates_matcher_tester.py	100.00% <100.00%> (ø)
unittests/bit_fields_tester.py	100.00% <100.00%> (ø)
unittests/cache_enums_tester.py	96.96% <100.00%> (ø)
unittests/cached_source_file_tester.py	100.00% <100.00%> (ø)
unittests/call_invocation_tester.py	100.00% <100.00%> (ø)
unittests/calldef_matcher_tester.py	100.00% <100.00%> (ø)
... and 69 more