* config_proc_macro: fix failing doctests
* ci: include config_proc_macro crate in ci
* [review] working native windows ci
* [fix] add --locked file for ci
* [fix] quoting of cmd variables
The v2 implementation uses Node 12, which is end-of-life on April 30, 2022.
See https://nodejs.org/en/about/releases/. Update to v3, which is based on
Node 16 whose support lasts until April 30, 2024.
Resolves 5038
rust-lang/rust builds now document rustfmt (rust-lang/rust#87119). The
build process is updated with doc checks to ensure that rustfmt doesn't
introduce warnings.
Warnings are treated as hard errors in rust-lang/rust and won't show
until bors tests the changes (refs rust-lang/rust#90087).
