Log Message:
py-numexpr: updated to 2.8.4

Changes from 2.8.3 to 2.8.4
---------------------------
* Support for Python 3.11 has been added.
* Thanks to Tobias Hangleiter for an improved accuracy complex `expm1` function.
  While it is 25 % slower, it is significantly more accurate for the real component
  over a range of values and matches NumPy outputs much more closely.
* Thanks to Kirill Kouzoubov for a range of fixes to constants parsing that was
  resulting in duplicated constants of the same value.
* Thanks to Mark Harfouche for noticing that we no longer need `numpy` version
  checks. `packaging` is no longer a requirement as a result.