update loki + promtail

Author: Mafyuh

docker/grafana/docker-compose.yml

@@ -29,7 +29,7 @@ services:
       - grafana
 
   loki:
-    image: grafana/loki:2.4.0
+    image: grafana/loki:3.0.0
     container_name: loki
     volumes:
       - /docker/appdata/loki:/etc/loki
@@ -41,7 +41,7 @@ services:
       - grafana
 
   promtail:
-    image: grafana/promtail:2.4.0
+    image: grafana/promtail:3.0.0
     container_name: promtail
     volumes:
       - /var/log:/var/log