Change syntax for patches

[BrentSouza]

Description

The kustomization.yaml in kube/base has invalid syntax for patches which causes the following error when using kustomize >= 5.0.0:

invalid Kustomization: error unmarshaling JSON: while decoding JSON: json: cannot unmarshal string into Go struct field Kustomization.patches of type types.Patch

This is a small change to add the proper syntax for patches in a file.

Type of change

• Bug fix (non-breaking change which fixes an issue)

This works with kustomize >= 4.1.3 which is when replacements was added.

Checklist

• Have you checked to there aren't other open Pull Requests for the same update/change?
• Have you lint your code locally before submission?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you successfully run tests with your changes locally?

[thomas-gerber]

LGTM