Update image name for Mariner 1.0 #833
Description
The CBL-Mariner 1.0 Helix Dockerfile is referencing an obsolete image name that no longer works.
It leads to this build failure:
PULLING LATEST BASE IMAGES
--------------------------
-- EXECUTING: docker pull --platform linux/amd64 cblmariner.azurecr.io/base/core:1.0
Error response from daemon: Head "[https://cblmariner.azurecr.io/v2/base/core/manifests/1.0"](https://cblmariner.azurecr.io/v2/base/core/manifests/1.0%22): unauthorized: authentication required, visit https://aka.ms/acr/authorization for more information.
The image name should be changed to mcr.microsoft.com/cbl-mariner/base/core:1.0 instead.
This is blocking the build of #832.