v2: how to use dynamic variable in extraconfig

[khjean]

k8s-monitoring chart version : 2.0.4

I m using extraconfig in alloy-singleton for scraping rule
but i don't know how to use dynamic variable in extraconfig
this is my values.yaml
when i render values.yaml , "{{ $.Values.cluster.name }}" can not render to dynamic values

if you have a solution let me know ( when i use v1 , I had no problem )

...
  alloy-singleton:
    enabled: true
    alloy:
      enableReporting: false
    extraConfig: |-
      mimir.rules.kubernetes "default" {
          address = "{{ .Values.address}}"
          tenant_id = "anonymous"
          mimir_namespace_prefix = "{{ $.Values.cluster.name }}"
          rule_selector {
              match_labels = {
                  rule_group = "lgtm_group",
              }
          }
      }
...