Removes bors.toml, because it's no longer used/needed (it seems salsa is using a merge queue now). Also removes the empty rustfmt.toml.
Updates some GitHub Actions to the latest, removes the bors branch push triggers, and removes the use of the unmaintained actions-rs actions. Also bumps the mdbook versions to the latest and adds cacheing for the rust build jobs.
Another follow-up of #501.
Removes
bors.toml
, because it's no longer used/needed (it seems salsa is using a merge queue now). Also removes the emptyrustfmt.toml
.Updates some GitHub Actions to the latest, removes the
bors
branch push triggers, and removes the use of the unmaintainedactions-rs
actions. Also bumps themdbook
versions to the latest and adds cacheing for the rust build jobs.