chore(deps): update helm release mimir-distributed to v6.0.3

[skip ci]

Author: my-renovate[bot]

_posts/2025/2025-08-08-amazon-eks-grafana-stack.md

@@ -1251,7 +1251,7 @@ to fit your environment and storage backend:
 
 ```bash
 # renovate: datasource=helm depName=mimir-distributed registryUrl=https://grafana.github.io/helm-charts
-MIMIR_DISTRIBUTED_HELM_CHART_VERSION="6.0.0"
+MIMIR_DISTRIBUTED_HELM_CHART_VERSION="6.0.3"
 
 helm repo add --force-update grafana https://grafana.github.io/helm-charts
 tee "${TMP_DIR}/${CLUSTER_FQDN}/helm_values-mimir-distributed.yml" << EOF