[Chapel Merge] Add a PREDIFF to remove most of the variance in Python memleaks tests

Branch: refs/heads/main
Revision: f2299489232dea1cc3a089a37723141f4fc23e80
Author: dlongnecke-cray
Link: Add a PREDIFF to remove most of the variance in Python memleaks tests by dlongnecke-cray · Pull Request #28473 · chapel-lang/chapel · GitHub
Log Message:
Add a PREDIFF to remove most of the variance in Python memleaks tests (#28473)

This PR attempts to fix some nightly test failures caused by variance in
the amount of memory reported by some memleak tests for the Python
interpreter package module.

Reviewed by @DanilaFe. Thanks much!

Compare: Comparing 086403613ae9088c4da8bbf2188a8b360f798124...435f46fed84efc8a8f17ff6e81b5cdaaad5b0d20 · chapel-lang/chapel · GitHub

Diff:
A test/library/packages/Python/memleaks/PREDIFF
M test/library/packages/Python/memleaks/basicTypes.good
M test/library/packages/Python/memleaks/iterate.good
M test/library/packages/Python/memleaks/lambdas.good
M test/library/packages/Python/memleaks/maps.good
https://github.com/chapel-lang/chapel/pull/28473.diff