Add the Rust repository under protected paths

Author: Kobzol

.github/CODEOWNERS

@@ -19,6 +19,7 @@ teams/**/*.toml
 # Modifying these files requires admin approval.
 /repos/rust-lang/team.toml @Mark-Simulacrum @pietroalbini @jdno @marcoieni
 /repos/rust-lang/sync-team.toml @Mark-Simulacrum @pietroalbini @jdno @marcoieni
+/repos/rust-lang/rust.toml @Mark-Simulacrum @pietroalbini @jdno @marcoieni
 /teams/infra-admins.toml @Mark-Simulacrum @pietroalbini @jdno @marcoieni
 /teams/team-repo-admins.toml @Mark-Simulacrum @pietroalbini @jdno @marcoieni
 /people/Mark-Simulacrum.toml @Mark-Simulacrum @pietroalbini @jdno @marcoieni

src/ci.rs

@@ -30,6 +30,7 @@ pub fn check_codeowners(data: Data) -> anyhow::Result<()> {
 const PROTECTED_PATHS: &[&str] = &[
     "/repos/rust-lang/team.toml",
     "/repos/rust-lang/sync-team.toml",
+    "/repos/rust-lang/rust.toml",
     "/teams/infra-admins.toml",
     "/teams/team-repo-admins.toml",
 ];