Remove Selenium test from codecov job

[ricardobranco777]

make test runs the same pytest --cov that the codecov job runs as shown here & here

It just wastes CPU cycles and increases our carbon footprint for nothing.

Either we remove this or add SKIP_SELENIUM=1 to one of them, as this test takes a lot of time building a Docker image and then running Firefox for Selenium.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.60%. Comparing base (d871823) to head (e9f5e2f).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #425   +/-   ##
=======================================
  Coverage   79.60%   79.60%           
=======================================
  Files          21       21           
  Lines        1632     1632           
=======================================
  Hits         1299     1299           
  Misses        333      333           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[asmorodskyi]

LGTM