feat: do not start background tasks during tests

[r4mmer]

Acceptance Criteria

• Allow the user to stop the GLL background task that may keep integration tests hanging.

Security Checklist

• Make sure you do not include new dependencies in the project unless strictly necessary and do not include dev-dependencies as production ones. More dependencies increase the possibility of one of them being hijacked and affecting us.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.44%. Comparing base (d636422) to head (62bbda5).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #934       +/-   ##
===========================================
+ Coverage   57.22%   84.44%   +27.22%     
===========================================
  Files         111      111               
  Lines        7974     7978        +4     
  Branches     1704     1714       +10     
===========================================
+ Hits         4563     6737     +2174     
+ Misses       3394     1215     -2179     
- Partials       17       26        +9     

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