fix: resolves lint issues

Author: sunng87

arrow-pg/src/datatypes/df.rs

@@ -160,7 +160,7 @@ where
                 return Err(PgWireError::UserError(Box::new(ErrorInfo::new(
                     "FATAL".to_string(),
                     "XX000".to_string(),
-                    format!("Unsupported parameter type: {}", pg_type),
+                    format!("Unsupported parameter type: {pg_type}"),
                 ))));
             }
         }

arrow-pg/src/encoder.rs

@@ -496,8 +496,7 @@ pub fn encode_value<T: Encoder>(
                 postgres_types::Kind::Composite(fields) => fields,
                 _ => {
                     return Err(PgWireError::ApiError(ToSqlError::from(format!(
-                        "Failed to unwrap a composite type from type {}",
-                        type_
+                        "Failed to unwrap a composite type from type {type_}"
                     ))));
                 }
             };
@@ -529,8 +528,7 @@ pub fn encode_value<T: Encoder>(
                 .or_else(|| get_dict_values!(UInt64Type))
                 .ok_or_else(|| {
                     ToSqlError::from(format!(
-                        "Unsupported dictionary key type for value type {}",
-                        value_type
+                        "Unsupported dictionary key type for value type {value_type}",
                     ))
                 })?;