Add script for running nightly rustfmt on all workspaces (#23244)

* Add script for running nightly rustfmt on all workspaces

* invalidate ci cache

programs/bpf/build.rs

@@ -1,7 +1,9 @@
 extern crate walkdir;
 
-use std::{env, path::Path, process::Command};
-use walkdir::WalkDir;
+use {
+    std::{env, path::Path, process::Command},
+    walkdir::WalkDir,
+};
 
 fn rerun_if_changed(files: &[&str], directories: &[&str], excludes: &[&str]) {
     let mut all_files: Vec<_> = files.iter().map(|f| f.to_string()).collect();