synthetics-minion imagePullSecrets not inherited by runner pod spec

[keegoid-nr]

Bug description

When setting an imagePullSecrets name, this works to pull the minion image from a private repository, but when the minion tries to pull the runner image from the same, it fails.

Version of Helm and Kubernetes

$ helm version --short
v3.9.4+gdbc6d8e
$ kubectl version --short
Client Version: v1.22.13
Server Version: v1.22.12-eks-6d3986b

Which chart?

1.0.51

What happened?

https://discuss.newrelic.com/t/synthetic-minion-runner-image/188741/5

What you expected to happen?

I would expect to see the following in the yaml output from a runner or healthcheck pod.

apiVersion: v1
items:
- apiVersion: v1
  kind: Pod
  spec:
    imagePullSecrets:
    - name: kmullaney312

How to reproduce it?

1. host images in a private repository
2. create a secret in your cluster
3. configure values.yaml with your runner image repository, minion image, and imagePullSecrets.
4. install with helm

helm upgrade --install synthetics-minion -n nr-minion newrelic/synthetics-minion -f values.yaml --create-namespace --version 1.0.51