pandas 2.2.x doesn't pin numpy >= 1.22.4

[pgunn]

Pandas 2.2.x apparently needs numpy 1.22.4 but the feedstock wasn't updated.

​​>>> import pandas
​​...
​​ImportError: this version of pandas is incompatible with numpy < 1.22.4
​​your numpy version is 1.21.6.
​​Please upgrade numpy to >= 1.22.4 to use this pandas version

[pgunn]

(what I mean is that because the feedstock's metadata doesn't include a pin, the user can end up with an invalid permutation of pandas and numpy, such as numpy 1.21.6 and pandas 2.x)