fix: grafana dashboard

Author: FerTV

nebula/addons/waf/grafana/automatic.yml

@@ -1,6 +1,6 @@
 datasources:
 - name: Loki
   type: loki
-  url: http://nebula-nebula-waf-loki:3100
+  url: http://nebula_nebula-waf-loki:3100
   isDefault: true
   editable: true

nebula/addons/waf/promtail-config.yml

@@ -6,7 +6,7 @@ positions:
   filename: /tmp/positions.yaml
 
 clients:
-  - url: http://nebula-nebula-waf-loki:3100/loki/api/v1/push
+  - url: http://nebula_nebula-waf-loki:3100/loki/api/v1/push
 
 scrape_configs:
   - job_name: nginx