source bash configurations

[aerorahul]

Description This PR:

• runs subprocess in a bash shell
• allows the test_configuration tests to run on GH runner. They were previously disabled on GA

Type of change

• [X] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• [X] pynorms
• [X] pytests

Checklist

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes need updates to the documentation. I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] New and existing tests pass with my changes
• [x] Any dependent changes have been merged and published

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 50.00%. Comparing base (5dad7dd) to head (239773c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #36 +/- ## =========================================== + Coverage 48.23% 50.00% +1.76% =========================================== Files 18 18 Lines 1644 1646 +2 Branches 335 335 =========================================== + Hits 793 823 +30 + Misses 791 763 -28 Partials 60 60 ```

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