Add  @pytest.mark.grab_versions to tests

Change-Id: I7d5374c54c5817f265f85559d46e85eb868ddbff
diff --git a/tcp_tests/tests/system/test_oss_install.py b/tcp_tests/tests/system/test_oss_install.py
index ec6a6fb..f62f1c8 100644
--- a/tcp_tests/tests/system/test_oss_install.py
+++ b/tcp_tests/tests/system/test_oss_install.py
@@ -22,6 +22,7 @@
 class TestOSSInstaller(object):
     """Test class for testing Operational Support System Tools deployment"""
 
+    @pytest.mark.grab_versions
     @pytest.mark.fail_snapshot
     def test_oss_install_default(self, underlay, show_step,
                                  oss_deployed, openstack_deployed,