chore(deps): update grafana/grafana to v12

Author: renovate[bot]

compose.yaml

@@ -22,7 +22,7 @@ services:
       - ./dev/prometheus/data:/prometheus
 
   grafana:
-    image: grafana/grafana:10.4.19
+    image: grafana/grafana:12.1.0
     links:
       - prometheus
     container_name: grafana