cypari2

update un/download artefacts action to v4 #171

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2 errors and 2 warnings

Canceling since a higher priority waiting request for 'cypari2-refs/pull/174/merge' exists

The operation was canceled.

The process '/opt/homebrew/bin/git' failed with exit code 128

No files were found with the provided path: sage-local-artifact/sage-local-conda-forge-macos-standard-.tar. No artifacts will be uploaded.