testing: stop chef test from running on openstack (#1102)

Chef tests attempt to reach out to test URLs, which will get blocked by
our on our openstack installs.

tests/integration_tests/bugs/test_gh868.py

@@ -16,6 +16,12 @@
 
 
 @pytest.mark.adhoc  # Can't be regularly reaching out to chef install script
+@pytest.mark.ec2
+@pytest.mark.gce
+@pytest.mark.azure
+@pytest.mark.oci
+@pytest.mark.lxd_container
+@pytest.mark.lxd_vm
 @pytest.mark.user_data(USERDATA)
 def test_chef_license(client: IntegrationInstance):
     log = client.read_from_file('/var/log/cloud-init.log')