Explicitly push :latest tags in create_builder.yaml workflow
Explicitly push :latest tags in create_builder.yaml workflow

Not specifying a tag in the images list will result in the whole repository (all tags) being pushed.

PiperOrigin-RevId: 340294829
Change-Id: I626e0eeaf67865b4154935da7f40a41c37542bbd

GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks