chore(deps): update grafana/grafana docker tag to v12.3.1 (#2723)

| datasource | package         | from   | to     |
| ---------- | --------------- | ------ | ------ |
| docker     | grafana/grafana | 12.2.1 | 12.3.1 |

Co-authored-by: Renovate Bot <[email protected]>

Author: Fameing

embedded-grafana/README.adoc

@@ -16,7 +16,7 @@
 
 * `embedded.grafana.enabled` `(true|false, default is true)`
 * `embedded.grafana.reuseContainer` `(true|false, default is false)`
-* `embedded.grafana.dockerImage` `(default is 'grafana/grafana:12.2.1')`
+* `embedded.grafana.dockerImage` `(default is 'grafana/grafana:12.3.1')`
 ** Image versions on https://hub.docker.com/r/grafana/grafana/tags[dockerhub]
 * `embedded.grafana.networkAlias` `(default is 'grafana')`
 * `embedded.grafana.username` `(default is 'admin')`

embedded-grafana/src/main/java/com/playtika/testcontainer/grafana/GrafanaProperties.java

@@ -23,6 +23,6 @@ public class GrafanaProperties extends CommonContainerProperties {
     public String getDefaultDockerImage() {
         // Please don`t remove this comment.
         // renovate: datasource=docker
-        return "grafana/grafana:12.2.1";
+        return "grafana/grafana:12.3.1";
     }
 }