chore(deps): update helm release kube-prometheus-stack to v67.7.0 (#119)

| datasource | package               | from   | to     |
| ---------- | --------------------- | ------ | ------ |
| helm       | kube-prometheus-stack | 67.4.0 | 67.7.0 |

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

monitoring.tf

@@ -245,7 +245,7 @@ module "prometheus_stack" {
   create = var.create_addons && var.enable_prometheus_stack
 
   chart         = "kube-prometheus-stack"
-  chart_version = "67.4.0"
+  chart_version = "67.7.0"
   repository    = "https://prometheus-community.github.io/helm-charts"
   description   = "Prometheus Stack"
   namespace     = local.monitoring_namespace