chore(deps): update helm release grafana to v10

| datasource | package | from   | to      |
| ---------- | ------- | ------ | ------- |
| helm       | grafana | 6.43.5 | 10.5.15 |


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

Author: renovate-sh-app[bot]

charts/loki-stack/requirements.yaml

@@ -13,7 +13,7 @@ dependencies:
   version: "^2.3.0"
 - name: "grafana"
   condition: grafana.enabled
-  version: "~6.43.0"
+  version: "~10.5.0"
   repository:  "https://grafana.github.io/helm-charts"
 - name: "prometheus"
   condition: prometheus.enabled