[DOP-21350] Fix test coverage percentage

Author: Ilyas Gasanov

docker-compose.test.yml

@@ -79,7 +79,7 @@ services:
       context: .
       target: test
     command: --loglevel=info -Q test_queue
-    entrypoint: [python, -m, celery, -A, tests.test_integration.celery_test, worker, --max-tasks-per-child=1]
+    entrypoint: [coverage, run, -m, celery, -A, tests.test_integration.celery_test, worker, --max-tasks-per-child=1]
     env_file: .env.docker
     environment:
       # CI runs tests in the worker container, so we need to turn off interaction with static files for it