chore(deps): update grafana/grafana docker tag to v12 (rnaveiras#370)

Author: rnaveiras

compose.yaml

@@ -114,7 +114,7 @@ services:
 
   grafana:
     <<: *network
-    image: grafana/grafana:11.6.2@sha256:a3464c5dadc2e16aaeb813aead8c852e81cc7bbfa851c66d96f016d5257b9848
+    image: grafana/grafana:12.0.2@sha256:b5b59bfc7561634c2d7b136c4543d702ebcc94a3da477f21ff26f89ffd4214fa
     ports:
       - "3000:3000"
     environment: