Add sanity marks

Signed-off-by: anikeev-yadro <a.anikeev@yadro.com>

pytest_tests/testsuites/conftest.py

@@ -146,7 +146,10 @@ def complex_object_size(max_object_size: int) -> ObjectSize:
 
 # By default we want all tests to be executed with both object sizes
 # This can be overriden in choosen tests if needed
-@pytest.fixture(scope="session", params=["simple", "complex"])
+@pytest.fixture(
+    scope="session",
+    params=[pytest.param("simple", marks=pytest.mark.simple), pytest.param("complex", marks=pytest.mark.complex)],
+)
 def object_size(
     simple_object_size: ObjectSize, complex_object_size: ObjectSize, request: pytest.FixtureRequest
 ) -> ObjectSize: