chore: mod path of image pull secret

[chriswldenyer]

Move the image pull secret to be under image, not base.

Description

Move the image pull secret to be under image, not base. This is the more logical location.

Motivation and Context

Regression

No

How Has This Been Tested?

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added unit tests to cover my changes.