workspace: add Rust EFI infrastructure

This bumps rules_rust, cleans up the toolchains with the new version.
It also adds the Prost codegen to "normal" crate set as well as a new
crate set specific to EFI. This is separate because of Rust no-std's
dependence on create feature tags.

Change-Id: Ie76e66ee83696948391420ca3b011a3a71258690
Reviewed-on: https://review.monogon.dev/c/monogon/+/2202
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/third_party/rust/cargo/remote/BUILD.inotify-sys-0.1.5.bazel b/third_party/rust/cargo/remote/BUILD.inotify-sys-0.1.5.bazel
index 6e05fce..8b093c8 100644
--- a/third_party/rust/cargo/remote/BUILD.inotify-sys-0.1.5.bazel
+++ b/third_party/rust/cargo/remote/BUILD.inotify-sys-0.1.5.bazel
@@ -48,6 +48,6 @@
     version = "0.1.5",
     # buildifier: leave-alone
     deps = [
-        "@raze__libc__0_2_139//:libc",
+        "@raze__libc__0_2_148//:libc",
     ],
 )