Move tests for global helper functions to test_utils.py

[devpatel-1]

Moved TestGetIocType, TestIsValidIpv4, and TestIsValidCIDR from test_extraction_utils.py to test_utils.py as they test functions from greedybear/utils.py not extraction utils.

Fixes #1352

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[regulartim]

What is this? :D

[regulartim]

That's not the correct path, so the code in your PR is not executable. This means you never ran the suite locally after the move. Or do you have another explanation?

[regulartim]

Hey @devpatel-1 ! You did not answer my feedback on your PR and just closed it. That's not how I expect contributors to collaborate. I'll unassign you from the issue.