CI: adjust pins in mypy GHA job

 - pin minimum mypy to not complain about name of positional-only
 - drop upper pin

Author: tacaswell

ci/mypy-stubtest-allowlist.txt

@@ -35,9 +35,6 @@ matplotlib.figure.Figure.set_constrained_layout
 matplotlib.figure.Figure.set_constrained_layout_pads
 matplotlib.figure.Figure.set_tight_layout
 
-# positional-only argument name lacking leading underscores
-matplotlib.axes._base._AxesBase.axis
-
 # Maybe should be abstractmethods, required for subclasses, stubs define once
 matplotlib.tri.*TriInterpolator.__call__
 matplotlib.tri.*TriInterpolator.gradient

requirements/testing/mypy.txt

@@ -1,7 +1,7 @@
 # Extra pip requirements for the GitHub Actions mypy build
 
-mypy==1.1.1
-typing-extensions>=4.1,<5
+mypy>=1.9
+typing-extensions>=4.1
 
 # Extra stubs distributed separately from the main pypi package
 pandas-stubs