Enable clippy::useless_conversion (#8724)

This PR enables the
[`clippy::useless_conversion`](https://rust-lang.github.io/rust-clippy/master/index.html#/useless_conversion)
rule and fixes the outstanding violations.

Release Notes:

- N/A

crates/language/src/syntax_map.rs

@@ -1421,7 +1421,7 @@ fn insert_newlines_between_ranges(
         if range_a.end_point.row < range_b.start_point.row {
             let end_point = start_point + Point::from_ts_point(range_a.end_point);
             let line_end = Point::new(end_point.row, text.line_len(end_point.row));
-            if end_point.column as u32 >= line_end.column {
+            if end_point.column >= line_end.column {
                 range_a.end_byte += 1;
                 range_a.end_point.row += 1;
                 range_a.end_point.column = 0;