Cargo.toml: bring back vmnet-drive's version

Bump version to 0.4.2

Bump version to 0.4.1

CI: add "Test" alias to test tasks

Fix CARGO_REGISTRY_TOKEN crates mask from vmnet-* to vmnet*

Bump vmnet-derive dependency to 0.2.0

clear_event_callback(): specify all known event flags instead of 0

Otherwise we get VMNET_INVALID_ARGUMENT from vmnet.framework.

vmnet-derive/Cargo.toml: prepare for publishing