RUSTSEC-2024-0436 was issued about paste being unmaintained.
This will not be resolved until accesskit_windows upgrades its
implementation to avoid this crate.

Wildcard tree queries can match multiple groups or gardens that contain
the same trees. Display a unique set of trees in the query results.

Ensure that trees, groups, and gardens are sorted relative to each
other, but not globally across the entire set of completions.

egui_extras uses mime_guess2 but it didn't pin the version down.
This caused mime_guess2 to upgrade to a version that requires
edition 2024, which is not supported by our MSRV.

Pin it down to avoid updating our MSRV.

Minimize our use of external actions and rework actions to leverage the
rust ~/.cargo cache.