Fix letsencrypt SSL issue & added suppport for configmap

[rishangbhavsar]

I was deploying an application with the letsencrypt and cert manager, where i was facing issues due to the annotations in the ingress which I was not able to tweak so i need to fix it in the chart itself. After making this change it works perfectly now

[rishangbhavsar]

my certmanager helm config

# Chart Version
  sources:
    - repoURL: https://charts.jetstack.io
      chart: cert-manager
      targetRevision: v1.18.2
      helm:
        releaseName: cert-manager

apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: letsencrypt-prod
spec:
  acme:
    server: https://acme-v02.api.letsencrypt.org/directory
    email: [email protected]
    profile: tlsserver
    privateKeySecretRef:
      name: letsencrypt-prod
    solvers:
      - http01:
          ingress:
            ingressClassName: nginx

[rishangbhavsar]

I also have added support for configmaps and deployment replicaset limits revisionHistoryLimit in the PR