Update CI.yml to free up disk space for viral_refbased and viral_assemble tests

[Copilot]

This PR updates the GitHub Actions workflow configuration to provide more disk space for the viral_refbased and viral_assemble CI test targets, which can be resource-intensive and require significant disk space.

Changes Made

1. Updated action version: Upgraded AdityaGarg8/remove-unwanted-software from v3 to v5 to use the latest version with additional cleanup capabilities.

2. Added additional cleanup options: Enabled three new configuration options to free up even more disk space:

   • remove-docker-images: 'true' - Removes pre-cached Docker images
   • remove-large-packages: 'true' - Removes large packages like LLVM, .NET Core, etc.
   • remove-cached-tools: 'true' - Removes cached tools and dependencies

3. Extended scope: The disk space cleanup step now applies to both viral_refbased and viral_assemble targets instead of just viral_assemble. Updated the conditional from:

   if: ${{ matrix.ci_target == 'viral_assemble' }}

   to:

   if: ${{ matrix.ci_target == 'viral_assemble' || matrix.ci_target == 'viral_refbased' }}

These changes should help prevent disk space exhaustion issues during CI runs for these viral workflow tests.

Original prompt

.github/workflows/CI.yml: free up more disk space for viral_refbased as well as viral_assemble. (update to AdityaGarg8/remove-unwanted-software@v5 while you're at it, and set its remove-docker-images, remove-large-packages, and remove-cached-tools options)

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[mlin]

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