litmus-agent hook-pre-install-job missing imagePullSecrets

[bingwei-hong-partior]

What happened:
When using litmus-agent helm chart, it is notice that litmus-agent hook-pre-install-job.yaml created job missing imagePullSecrets to allow using private repo

What you expected to happen:
There should be imagePullSecrets for the litmus-agent and the pre-install-job should be updated to use imagePullSecrets

Where can this issue be corrected? (optional)

hook-pre-install-job.yaml to add take in imagePullSecrets under spec section.

How to reproduce it (as minimally and precisely as possible):
Run the litmus-agent helm chart with a private repository

Anything else we need to know?:

[bingwei-hong-partior]

raised wrong repo, close it to raise in correct repo