Upgrade to Grafana 11.1.3

Major update of container without any issue by means of Docker compose YAML infrastructure and automated Portainer GitOps workflow mitigating a cirtical CVE.

Also upgrading Grafana instances of Loki and kube-prometheus-stack on K3s cluster.

11.1.1 (2024-07-10)
11.1.2 (2024-07-24)
11.1.3 (2024-07-26)