pkgs/*: Remove pytest coverage testing from every single test run

There was no noticeable positive impact from having coverage reports on
every single test run.

While adding a separate command to check coverage might be added in the
future, the overhead of collecting the coverage for every test run made
seems not worth it currently.

pkgs/generate-test-vars/pyproject.toml

@@ -22,7 +22,7 @@ testpaths = "tests"
 faulthandler_timeout = 60
 log_level = "DEBUG"
 log_format = "%(levelname)s: %(message)s\n       %(pathname)s:%(lineno)d::%(funcName)s"
-addopts = "--cov . --cov-report term --cov-report html:.reports/html --no-cov-on-fail --durations 5 --color=yes --new-first" # Add --pdb for debugging
+addopts = "--durations 5 --color=yes --new-first" # Add --pdb for debugging
 norecursedirs = "tests/helpers"
 
 [tool.mypy]