[#274] Change mark log analyzer

pytest.ini

@@ -68,3 +68,4 @@ markers =
     static_session_container: tests for a static session in a container
     shard: shard management tests
     logs_after_session: tests after a session with logs
+    session_logs: check logs messages

pytest_tests/testsuites/special/test_logs.py

@@ -20,8 +20,9 @@ def pytest_generate_tests(metafunc: pytest.Metafunc):
     )
 
 
-@pytest.mark.logs_after_session
+@pytest.mark.session_logs
 class TestLogs:
+    @pytest.mark.logs_after_session
     @pytest.mark.order(1000)
     @allure.title("Check logs from frostfs-testcases with marks '{request.config.option.markexpr}' - search errors")
     def test_logs_search_errors(