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 +/- ##
=========================================
Coverage 100.00% 100.00% =========================================
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 :)