Normalize Docker image naming in release workflow to unblock build-and-test job

[Copilot]

The build-and-test GitHub Actions job failed because Docker tags were derived from github.repository, which can include uppercase characters (invalid for image names). This updates the release workflow to consistently use a lowercase repository name for Docker image references.

• Root cause addressed

  • release.yml used ${{ github.repository }} directly for image tags (e.g., JayacharanR/Clean-Backup:test), which Docker rejects.

• Workflow changes

  • Added a normalization step in both build-and-test and publish-ghcr jobs to compute a lowercase image name via $GITHUB_ENV.
  • Switched build/test tag references to ${{ env.IMAGE_NAME_LOWER }}.
  • Switched GHCR metadata image source to ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LOWER }} for consistency.

• Resulting behavior

  • Build/test tags and publish metadata now comply with Docker naming constraints regardless of repository casing.

- name: Normalize image name
  run: echo "IMAGE_NAME_LOWER=${GITHUB_REPOSITORY,,}" >> "$GITHUB_ENV"

# later
tags: ${{ env.IMAGE_NAME_LOWER }}:test
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LOWER }}

[Copilot]

Pull request overview

This PR updates the release GitHub Actions workflow to prevent Docker build/test failures caused by invalid (uppercase) image tags derived from github.repository.

Changes:

• Removes the previous IMAGE_NAME env that used ${{ github.repository }} directly.
• Adds a normalization step in both jobs to compute IMAGE_NAME_LOWER via $GITHUB_ENV.
• Switches build/test tags and GHCR metadata images: to use ${{ env.IMAGE_NAME_LOWER }}.

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