BUG: New numpy dev caused ci to fail
- [x] I have checked that this issue has not already been reported.

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The weekly wheel of numpy changed and caused our ci to fail

Worked:
https://github.com/pandas-dev/pandas/runs/2314968903

First failure:
https://github.com/pandas-dev/pandas/runs/2315938439

Numpy wheels:

First:
https://pypi.anaconda.org/scipy-wheels-nightly/simple/numpy/1.21.0.dev0%2B1199.g623bc1fae/numpy-1.21.0.dev0%2B1199.g623bc1fae-cp38-cp38-manylinux2010_x86_64.whl

Second:
https://pypi.anaconda.org/scipy-wheels-nightly/simple/numpy/1.21.0.dev0%2B1229.g36eb76c9d/numpy-1.21.0.dev0%2B1229.g36eb76c9d-cp38-cp38-manylinux2010_x86_64.whl


cc @simonjayhawkins is this an issue for the 1.2.4 release?