Log Message:
py-pyparsing: updated to 3.1.1

Version 3.1.1 - July, 2023
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- Fixed regression in Word(min).
- Fixed bug in bad exception messages raised by Forward expressions.
- Fixed regression in SkipTo, where ignored expressions were not checked when looking
  for the target expression.
- Fixed type annotation for enable_packrat.
- Some general internal code cleanup.