Made cleanup hook job honor pullSecret settings

[albimn]

Summary

Changed Helm Chart to honor settings for pullSecrets also for the cleanup hook.

Checklist

For Helm Chart changes

• [x] Categorize the PR by setting a good title and adding one of the labels: bug, enhancement, documentation, change, breaking, dependency as they show up in the changelog
• [x] PR contains the label area:chart
• [x] PR contains the chart label, e.g. chart:k8up
• [ ] Variables are documented in the values.yaml using the format required by Helm-Docs.
• [x] Chart Version bumped if immediate release after merging is planned
• [ ] I have run make chart-docs
• [ ] Link this PR to related code release or other issues.

[Kidswiss]

Hi @albimn

Could you please fix the DCO?

[TheBigLee]

@albimn Please sign the commit to fix the DCO and also run make chart-docs to fix the ChartLint check. Furthermore a rebase is required now. Until this is fixed, we can't merge this PR.

Cheers Nicolas