add tidy check on dist src files order

Signed-off-by: onur-ozkan <work@onurozkan.dev>

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

@@ -994,20 +994,22 @@ impl Step for PlainSourceTarball {
 
         // This is the set of root paths which will become part of the source package
         let src_files = [
+            // tidy-alphabetical-start
+            ".gitmodules",
+            "Cargo.lock",
+            "Cargo.toml",
+            "config.example.toml",
+            "configure",
+            "CONTRIBUTING.md",
             "COPYRIGHT",
             "LICENSE-APACHE",
+            "license-metadata.json",
             "LICENSE-MIT",
-            "CONTRIBUTING.md",
             "README.md",
             "RELEASES.md",
             "REUSE.toml",
-            "license-metadata.json",
-            "configure",
             "x.py",
-            "config.example.toml",
-            "Cargo.toml",
-            "Cargo.lock",
-            ".gitmodules",
+            // tidy-alphabetical-end
         ];
         let src_dirs = ["src", "compiler", "library", "tests", "LICENSES"];