Why Image import is not working if only trustedCA is set in cluster proxy?

Issue

• The trustedCA is set in cluster proxy.

oc get proxies cluster -o yaml

apiVersion: config.openshift.io/v1
kind: Proxy
metadata:
  creationTimestamp: "2021-10-13T14:59:39Z"
  generation: 7
  name: cluster
  resourceVersion: "162106804"
  uid: 888382f9-4f9f-460a-ae51-d5c651b056b2
spec:
  trustedCA:
    name: custom-ca      <<<<
status: {}

• After this, the import of the image fails while creating the imported pod with the below error:

{"level":"error","ts":1645085463.2661765,"logger":"controller-runtime.manager.controller.import-controller","msg":"Reconciler error","name":"rhel8-traditional-crab","namespace":"nijin-cnv","error":"Pod \"importer-rhel8-traditional-crab\" is invalid: spec.containers[0].volumeMounts[1].name: Not found: \"cdi-proxy-cert-vol\"","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\t/remote-source/app/vendor/github.com/go-logr/zapr/zapr.go:132\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/remote-source/app/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:302\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/remote-source/app/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:253\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1.2\n\t/remote-source/app/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:216\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext.func1\n\t/remote-source/app/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/remote-source/app/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/remote-source/app/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/remote-source/app/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.JitterUntilWithContext\n\t/remote-source/app/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:185\nk8s.io/apimachinery/pkg/util/wait.UntilWithContext\n\t/remote-source/app/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:99"}