Update grafana/loki Docker tag to v2.9.13

Author: renovate[bot]

deployment/advanced/docker-compose/docker-compose.yml

@@ -11,7 +11,7 @@ services:
         restart: unless-stopped
 
     loki:
-        image: grafana/loki:2.9.6
+        image: grafana/loki:2.9.13
         ports:
             - "3100:3100"
         command: -config.file=/etc/loki/local-config.yaml