Tweak project-test-config deprecation test for misc deprecations

[gshank]

resolves #10389

Problem

Test sometimes fails because of random other deprecations in global active deprecations variable

Solution

Check that the config is not in set instead of equal to empty set

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX
• This PR includes type annotations for new and modified functions

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.75%. Comparing base (c215697) to head (475148e).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10391      +/-   ##
==========================================
- Coverage   88.81%   88.75%   -0.06%     
==========================================
  Files         180      180              
  Lines       22496    22496              
==========================================
- Hits        19980    19967      -13     
- Misses       2516     2529      +13     

Flag	Coverage Δ
integration	86.01% <ø> (-0.15%)	⬇️
unit	62.15% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
Unit Tests	62.15% <ø> (ø)
Integration Tests	86.01% <ø> (-0.15%)	⬇️