Change Extra plugins from object to string

[kuritka]

I need to change the schema from object to string.

fir the values.yamlconfiguration:

before:

  coredns:
    extra_plugins: {log}

cloud.example.com:5353 {
    errors
    health
    log: {}
    prometheus 0.0.0.0:9153
    forward . /etc/resolv.conf
    k8s_crd {
        filter k8gb.absa.oss/dnstype=local
        negttl 300
        loadbalance weight
    }

after:

  coredns: 
    extra_plugins: |-
       log

cloud.example.com:5353 {
    errors
    health
    log 
    prometheus 0.0.0.0:9153
    forward . /etc/resolv.conf
    k8s_crd {
        filter k8gb.absa.oss/dnstype=local
        negttl 300
        loadbalance weight
    }

[ytsarev]

good catch