fix: resolve latest lint errors

src/cli.rs

@@ -41,10 +41,10 @@ fn main() {
         .unwrap();
     match handlebars.render(&filename, &data) {
         Ok(data) => {
-            println!("{}", data);
+            println!("{data}");
         }
         Err(e) => {
-            println!("Error rendering {}: {}", filename, e);
+            println!("Error rendering {filename}: {e}");
             process::exit(2);
         }
     }

src/error.rs

@@ -237,7 +237,7 @@ fn template_segment(template_str: &str, line: usize, col: usize) -> String {
     let mut buf = String::new();
     for (line_count, line_content) in template_str.lines().enumerate() {
         if line_count >= line_start && line_count <= line_end {
-            let _ = writeln!(&mut buf, "{:4} | {}", line_count, line_content);
+            let _ = writeln!(&mut buf, "{line_count:4} | {line_content}");
             if line_count == line - 1 {
                 buf.push_str("     |");
                 for c in 0..line_content.len() {

src/registry.rs

@@ -526,7 +526,7 @@ impl<'reg> Registry<'reg> {
         if let Some(result) = self.get_or_load_template_optional(name) {
             result
         } else {
-            Err(RenderError::new(format!("Template not found: {}", name)))
+            Err(RenderError::new(format!("Template not found: {name}")))
         }
     }
 

src/template.rs

@@ -211,7 +211,7 @@ impl Parameter {
         if let Some(name) = self.as_name() {
             name.to_owned()
         } else {
-            format!("{:?}", self)
+            format!("{self:?}")
         }
     }
 }