Removed Python3.8 support

[RobertSamoilescu]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.23%. Comparing base (8a1eb1c) to head (d68ede1).
Report is 13 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1032   +/-   ##
=======================================
  Coverage   85.23%   85.23%           
=======================================
  Files          74       74           
  Lines        8834     8855   +21     
=======================================
+ Hits         7530     7548   +18     
- Misses       1304     1307    +3     

see 1 file with indirect coverage changes