NO-SNOW add flag for local test setup

[sfc-gh-pczajka]

Fill out the following pre-review checklist:

• I am adding a new automated test(s) to verify correctness of my new code
• I am adding new logging messages
• I am adding a new telemetry message
• I am modifying authorization mechanisms
• I am adding new credentials
• I am modifying OCSP code
• I am adding a new dependency

Please describe how your code solves the related issue.

The code now runs in the same way on the local environment as it was running on GH Actions (detected as "is_public_test"). This PR adds "is_local_dev_setup" fixture, which can be marked in parameters.py, and adds it in tests where "is_public_test" fixture is used