Fixing paths that were preventing artifacts from being copied to workspace

[lc0rp]

Background

When running individual tests, some artifacts and custom_code were not copied to the workspace, causing tests to fail

Changes

Added the challenge_location path to the copy_artifacts_into_workspace() function.

PR Quality Checklist

• I have run the following commands against my code to ensure it passes our linters:

  black . --exclude test.py
  isort .
  mypy .
  autoflake --remove-all-unused-imports --recursive --ignore-init-module-imports --ignore-pass-after-docstring --in-place agbenchmark