Docker Pull Rate Exceeded

[brendanlafond]

When pulling alpine image to use for certs, Docker pull rate is being exceeded if your company runs self-hosted runners and has more than 100 builds per 6 hours. Passing the Docker credentials to the action resolves this, but it doesn't let you push your image to another location.

Potential fix:

• Remove alpine image as certs now come as part of the kaniko executor and aren't needed from alpine image. https://github.com/GoogleContainerTools/kaniko/blob/main/deploy/Dockerfile - Line 59 adds ca-certificates & Line 69 copies them

There is no longer a need to grab the certs.

Expected results: Download is only from ghcr.io for the executor and no need for the alpine download