CI: value_counts tests failing sometimes
It seems like we're getting some failures from `test_value_counts_unique_nunique` in `pandas/tests/base/test_ops.py` (weird thing is that it only fails some of the time; maybe because of randomized test data?). Looks like these tests were updated in https://github.com/pandas-dev/pandas/pull/32046; @SaturnFromTitan any ideas what might be happening there?

Sample failed pipeline: https://github.com/pandas-dev/pandas/runs/464853016