Bump mypy to 1.6.1

[sobolevn]

Closes #1709

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (7f025d8) to head (be04f3e).
Report is 184 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master     #1710   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           80        80           
  Lines         2485      2485           
  Branches       437       437           
=========================================
  Hits          2485      2485           

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[andersk]

Bisecting mypy shows that both failures were first triggered by python/mypy@14418bc:

• Polymorphic inference: support for parameter specifications and lambdas python/mypy#15837

[sobolevn]

Yeap, I have to rework how detach_callable works now.

[thepabloaguilar]

Hey @sobolevn, I can take this to fix!

[sobolevn]

Sure, please, go ahead :)

[thepabloaguilar]

I've tried but I have no idea 😄

Why do you think detach_callable is the problem?

[sobolevn]

yes :)