Merge branch '67-monitorer-encore-plus-de-certificats-o' into 'main'

Resolve "Monitorer encore plus de certificats \o/"

Closes #67

See merge request Neutrinet/infra!73

inventories/host_vars/monitoring.htz.neutri.net.yml

@@ -9,3 +9,6 @@ prometheus_telegraf_hosts:
 probe_http_certs:
   - https://neutrinet.be:443
   - https://api.neutrinet.be:443
+  - https://grafana.neutrinet.be:443
+  - https://support.neutrinet.be:443
+  - https://mail.neutri.net:443