Fix clippy::println_empty_string, clippy::while_let_on_iterator, clippy::while_let_on_iterator lint style violations (#36613)

Related: #36577

Release Notes:

- N/A

crates/project/src/git_store/git_traversal.rs

@@ -42,8 +42,8 @@ impl<'a> GitTraversal<'a> {
         //   other_repo/
         //     .git/
         //   our_query.txt
-        let mut query = path.ancestors();
-        while let Some(query) = query.next() {
+        let query = path.ancestors();
+        for query in query {
             let (_, snapshot) = self
                 .repo_root_to_snapshot
                 .range(Path::new("")..=query)

crates/project/src/lsp_store.rs

@@ -13149,10 +13149,10 @@ fn ensure_uniform_list_compatible_label(label: &mut CodeLabel) {
     let mut offset_map = vec![0; label.text.len() + 1];
     let mut last_char_was_space = false;
     let mut new_idx = 0;
-    let mut chars = label.text.char_indices().fuse();
+    let chars = label.text.char_indices().fuse();
     let mut newlines_removed = false;
 
-    while let Some((idx, c)) = chars.next() {
+    for (idx, c) in chars {
         offset_map[idx] = new_idx;
 
         match c {