Fix report test that is skipped

[johnjasa]

test_basic_report.py currently has a skipped test. We should test this.

Ken notes: Bret has added some utilities for comparing text stings of numerical values subject to tolerances:

https://github.com/OpenMDAO/OpenMDAO/blob/master/openmdao/utils/testing_utils.py#L401

Originally posted by @Kenneth-T-Moore in https://github.com/OpenMDAO/Aviary/pull/186#discussion_r1538098059

[xjjiang]

There is no file named test_basic_report.py.