ci: ignore cupy tests for now during the cicd pipeline

.github/workflows/check.yml

@@ -40,6 +40,8 @@ jobs:
     - name: Test with pytest
       run: |
         coverage run --source=qpretrieve -m pytest tests
+          # ignore the cupy imports, as we don't have a gpu-enabled pipeline setup
+          --ignore=tests/test_cupy_gpu
     - name: Lint with flake8
       run: |
         flake8 .