[Python] Upgrade mypy version to 1.7.1

[riteshghorse]

Upgrades mypy version to 1.7.1. Some files are yet to done and added to ignore list with github issue in mypyi.ini.

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (218af9d) 37.99% compared to head (8aaa43c) 37.98%. Report is 373 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #29707      +/-   ##
==========================================
- Coverage   37.99%   37.98%   -0.01%     
==========================================
  Files         691      691              
  Lines      101334   101257      -77     
==========================================
- Hits        38499    38467      -32     
+ Misses      61236    61191      -45     
  Partials     1599     1599              

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