Kenneth Loeffler 7232721b87 Use dtolnay/rust-toolchain and upgrade to checkout v4 in CI workflow (#900) ...

This PR performs some routine maintenance on our CI workflow:

* Replaces `actions-rs/toolchain` with `dtolnay/rust-toolchain`. The
actions at `actions-rs` are no longer maintained, and they use
deprecated GitHub Actions APIs. dtolnay's action does not support the
`override` option, but we didn't actually need to use it anyway.
* Upgrades `actions/checkout` to v4, because v3 causes some warnings
since it uses Node.js 16, which is deprecated.

2024-04-09 14:55:42 -07:00

..

workflows

Use dtolnay/rust-toolchain and upgrade to checkout v4 in CI workflow (#900)

2024-04-09 14:55:42 -07:00