fix: use proper GitHub.repository and add an echo for testing (#5757)

## Issue being fixed or feature implemented


## What was done?
Add an echo

## How Has This Been Tested?

## Breaking Changes
None

## Checklist:
_Go over all the following points, and put an `x` in all the boxes that
apply._
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

.github/workflows/release_docker_hub.yml

@@ -69,7 +69,7 @@ jobs:
         labels: ${{ steps.docker_meta.outputs.labels }}
         build-args: |
           TAG=${{ steps.get_tag.outputs.build_tag }}
-          GITHUB_REPOSITORY=$GITHUB_REPOSITORY
+          GITHUB_REPOSITORY=${{ github.repository }}
         cache-from: type=gha
         cache-to: type=gha,mode=max
         platforms: linux/amd64,linux/arm64

contrib/containers/deploy/Dockerfile.GitHubActions.Release

@@ -23,6 +23,8 @@ RUN apt-get update && \
     ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
+RUN echo "https://github.com/${GITHUB_REPOSITORY}/releases/download/v${TAG}/dashcore-${TAG}-$arch.tar.gz"
+
 RUN mach=$(uname -m) \
       && case $mach in aarch64) arch="aarch64-linux-gnu"; ;; x86_64) arch="x86_64-linux-gnu"; ;;  *) echo "ERROR: Machine type $mach not supported."; ;; esac \
       && wget https://github.com/${GITHUB_REPOSITORY}/releases/download/v${TAG}/dashcore-${TAG}-$arch.tar.gz -P /tmp \