chore(deps): update grafana/grafana docker tag to v12.4.0 (main) (#21004)

Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>
Co-authored-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>

Author: renovate-sh-app[bot]

production/docker/docker-compose.yaml

@@ -20,7 +20,7 @@ services:
       - loki
 
   grafana:
-    image: grafana/grafana:12.3.3@sha256:9e1e77ade304069aee3196e9a4f210830e96e80ce9a2640891eccc324b152faf
+    image: grafana/grafana:12.4.0@sha256:b0ae311af06228bcfd4a620504b653db80f5b91e94dc3dc2a5b7dab202bcde20
     ports:
       - "3000:3000"
     environment: