add marker for skip_for_dbt_fusion

Author: haritamar

integration_tests/tests/pytest.ini

@@ -3,3 +3,4 @@ markers =
     skip_targets(targets): skip test for the given targets
     only_on_targets(targets): skip test for non given targets
     requires_dbt_version(version): skip test if dbt version is not satisfied
+    skip_for_dbt_fusion: skip test for dbt fusion