fix(kustomize): disable digest pinning for image newName

[maxbrunet]

Changes

This change is ineffective

An attempt at disabling digest pinning for the images[].newName field, any pointer about how it could be achieved for this specific case would be appreciated :pray:

Context

The newName field does not support pinning digest with autoReplaceStringTemplate, because the usage of the field is ambiguous to Renovate, but any manager not configured properly regarding pinning digest breaks the renovate/pin-dependencies branch

Similar issue to #24942 and #25327 Follow up to #25596 Related discussion #24767

Documentation (please check one with an [x])

• [ ] I have updated the documentation, or
• [x] No documentation update is required

How I've tested my work (please select one)

I have verified these changes via:

• [ ] Code inspection only, or
• [ ] Newly added/modified unit tests, or
• [ ] No unit tests but ran on a real repository, or
• [x] Both unit tests + ran on a real repository