TST- Fixing issue with test_parquet test unexpectedly passing
- [x] closes #24479 
- [x] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

This pr aims to make the failing test_parquet not strict since it now passes at least on my machine of Mac 10.14 running the latest python 3.7 and conda.