ansible-lint: exclude some more paths (#2546)

The netbox playbooks are failing ansible-lints checks for some time
now, but the exact cause for that is unclear, let's exclude them.

Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>

Author: osfrickler

.ansible-lint

@@ -4,6 +4,7 @@ exclude_paths:
   - environments/kolla/files/overlays/ceilometer/event_pipeline.yaml
   - environments/kolla/files/overlays/ceilometer/pipeline.yaml
   - environments/kolla/files/overlays/prometheus/prometheus.yml.d/50-ceph.yml
+  - netbox/playbooks
 mock_modules:
   - netbox.netbox.netbox_device
   - netbox.netbox.netbox_ip_address