chore(deps): update helm release grafana to v9.2.9 (#278)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

cortado/system/monitoring/grafana.yaml

@@ -11,7 +11,7 @@ spec:
   source:
     repoURL: https://grafana.github.io/helm-charts
     chart: grafana
-    targetRevision: 9.2.7
+    targetRevision: 9.2.9
     helm:
       values: |
         adminUser: <path:kv/grafana#user>

mocha/system/monitoring/grafana.yaml

@@ -11,7 +11,7 @@ spec:
   source:
     repoURL: https://grafana.github.io/helm-charts
     chart: grafana
-    targetRevision: 9.2.7
+    targetRevision: 9.2.9
     helm:
       values: |
         adminUser: <path:kv/grafana#user>