You are given a string s. Your task is to count the number of characters in the string and return the total amount of characters in the string with the type u32.

let s = "hello";
let result = character_counting_string(s);
assert_eq!(result, 5);

• You can use the chars() method to get an iterator over the characters in the string.
• You can use the count() method to count the number of elements in the iterator.

The count() method returns a usize which is the number of elements in the iterator. In the challenge you are asked to return a u32, you can use the as keyword to convert the usize to a u32. For example, let count_u32 = count as u32;