chore(deps): upgrade perfectionist and fix new lint violations

Bump `perfectionist` from `3acd734` to `a21a146`. The upstream
delta adds three rules: `arc_rc_clone`, `derive_ordering`, and
`prefer_raw_string`. `derive_ordering` is silent; the other two
surface reasonable violations:

- `arc_rc_clone`: switch `progress.clone()` to
  `Arc::clone(&progress)` in
  `reporter::progress_and_error_reporter` to make the cheap
  refcount bump explicit.
- `prefer_raw_string`: rewrite the three string literals that
  embed escaped quotes as raw strings, in
  `reporter::error_report::text_report` and `tests::cli_errors`.

https://claude.ai/code/session_01CoRidYHvni9nKNgxMPXmfQ

Author: claude

dylint.toml

@@ -1,6 +1,6 @@
 [workspace.metadata.dylint]
 libraries = [
-    { git = "https://github.com/KSXGitHub/perfectionist", rev = "3acd734c12fbd56d2c760f3c7bc9a19e45e62541" },
+    { git = "https://github.com/KSXGitHub/perfectionist", rev = "a21a146eff0ff5b61571160d287fec100879046d" },
 ]
 
 ["perfectionist::single_letter_names"]

src/reporter/error_report/text_report.rs

@@ -42,6 +42,6 @@ fn test() {
         ),
     };
     let actual = TextReport(report).to_string();
-    let expected = "[error] read_dir \"path/to/a/directory\": Something goes wrong (os error 420)";
+    let expected = r#"[error] read_dir "path/to/a/directory": Something goes wrong (os error 420)"#;
     assert_eq!(actual, expected);
 }

src/reporter/progress_and_error_reporter.rs

@@ -47,7 +47,7 @@ where
         ReportProgress: Fn(ProgressReport<Size>) + Send + Sync + 'static,
     {
         let progress = Arc::new(ProgressReportState::default());
-        let progress_thread = progress.clone();
+        let progress_thread = Arc::clone(&progress);
         let progress_reporter_handle = spawn(move || {
             loop {
                 sleep(progress_report_interval);

tests/cli_errors.rs

@@ -168,8 +168,8 @@ fn fs_errors() {
         .map(|line| line.trim_start_matches('\r'))
         .collect();
     let expected_stderr_lines = btreeset! {
-        "[error] read_dir \"./nested/0\": Permission denied (os error 13)",
-        "[error] read_dir \"./empty-dir\": Permission denied (os error 13)",
+        r#"[error] read_dir "./nested/0": Permission denied (os error 13)"#,
+        r#"[error] read_dir "./empty-dir": Permission denied (os error 13)"#,
     };
     assert_eq!(actual_stderr_lines, expected_stderr_lines);