bump rust-toolchain to 1.72.1 (#11079)

# Description

This PR follows our process of staying 2 releases behind rust. 1.74.0
was released today so we update to 1.72.1.

Reference https://releases.rs/

# User-Facing Changes
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# Tests + Formatting
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crates/nu-command/src/filters/find.rs

@@ -304,8 +304,9 @@ fn highlight_terms_in_record_with_search_columns(
         let val_str = val.into_string("", config);
         let Some(term_str) = term_strs
             .iter()
-            .find(|term_str| contains_ignore_case(&val_str, term_str)) else {
-                continue;
+            .find(|term_str| contains_ignore_case(&val_str, term_str))
+        else {
+            continue;
         };
 
         let highlighted_str =