feat(general): remove 3.7 integ. test

[maxamel]

This PR changes the integ. tests to not run Py3.7 since it is failing on a 3.7 specific issue.
Since we're moving away from 3.7 anyway, we can skip this now.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my feature, policy, or fix is effective and works
• New and existing tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules