cainjector ConfigMap isn't mounted on cainjector's deployment

[jacek-jablonski]

Describe the bug:

I tried setting cainjector's logging format using Helm chart:

cert-manager:
  fullnameOverride: cert-manager
  installCRDs: true
  config:
    apiVersion: controller.config.cert-manager.io/v1alpha1
    kind: ControllerConfiguration
    logging:
      format: json
  cainjector:
    config:
      apiVersion: cainjector.config.cert-manager.io/v1alpha1
      kind: CAInjectorConfiguration
      logging:
        format: json

but it doesn't make any effect.

Expected behaviour:

Cainjector logs should be outputted with json, not with plain text

Anything else we need to know?:
In Helm Chart I cannot see any reference to cainjector's ConfigMap inside cainjector's Deployment. Cert-manager's Deployment mounts ConfigMap as volume, but nothing like that happens in cainjector deployment.

Environment details::

• Kubernetes version: v1.28.8-gke.1095000
• Cloud-provider/provisioner: GKE
• cert-manager version: v1.14.5
• Install method: e.g. helm/static manifests

/kind bug