FunctionalTestUtils LoadProviderExport loads incorrect file

[schrolla]

🐛 Summary

During functional testing, when using modified config file, the LoadProviderExport private function from the FunctionalTestUtils.ps1 script is used to load that modified config file, but the current version loads the original rather than the modified config.

To reproduce

Steps to reproduce the behavior:

1. Run a testplan that uses UpdateProviderExport in its preconditions and updates a value to make the test pass when it would normally fail. Specifically, you can run the existing MS.AAD.3.1v1 and MS.AAD.3.2v1 tests.
2. Note that the test will fail anyway.

Expected behavior

I expected the tests to pass based on the configured cached settings.

Any helpful log output or screenshots

Shows the regression in the code from the previous working version (right) to the bugged version (left)