fix missing rustfmt for apple darwin

Author: heiseish

src/bootstrap/src/core/build_steps/dist.rs

@@ -1591,9 +1591,15 @@ impl Step for Extended {
             prepare("cargo");
             prepare("rust-std");
             prepare("rust-analysis");
-            prepare("clippy");
-            prepare("rust-analyzer");
-            for tool in &["rust-docs", "miri", "rustc-codegen-cranelift"] {
+
+            for tool in &[
+                "clippy",
+                "rustfmt",
+                "rust-analyzer",
+                "rust-docs",
+                "miri",
+                "rustc-codegen-cranelift",
+            ] {
                 if built_tools.contains(tool) {
                     prepare(tool);
                 }