Run functions automatically when the shopping cart is updated in WooCommerce?

I have the following functions in my Woocomerce child themes functions.php file.
But every time the cart is updated I need to reload the cart page for the functions to run.

How can I execute the functions automatically when the shopping cart is updated?

add_action( 'woocommerce_before_calculate_totals', 'add_custom_weight', 10, 1 );
function add_custom_weight( $cart ) {
    
	if (($_SESSION["kilo_rate"]) && ($_SESSION["cart_items_count"]) > 0 ){
	
	$each_cart_item_weight = ($_SESSION["kilo_rate"]/$_SESSION["cart_items_count"]);
    foreach ( WC()->cart->get_cart() as $cart_item ) {
         //very simplified example - every item in cart will be 100 kg
        $cart_item['data']->set_weight( $each_cart_item_weight );
    }
   
	}
    // print_r( $cart->get_cart_contents_weight() ); // Only for testing (not on checkout page)
}

add_action('woocommerce_cart_contents_weight', 'set_cart_contents_weight');
function set_cart_contents_weight( $weight ) {        
    $weight = $_SESSION["kilo_rate"];    
    return $weight;     
}

add_action('woocommerce_cart_collaterals', 'myprefix_cart_extra_info');
function myprefix_cart_extra_info() {

	echo '<div class="cart-extra-info">';
	echo '<h2>Delivery Information</h2>';
	echo '<p>Weight: '. $_SESSION["kilo_rate"].'Kg (Pallet plus Products)';
	echo '</br> Items in Cart: '.$_SESSION["cart_items_count"];
	echo '</br> Pallet Size - Length '.$_SESSION["max_length_cart"].'m Width '.$_SESSION["max_width_cart"].'m</p>';
	echo '</div>';
	
}



/**
 * Add a 1% surcharge to your cart / checkout based on delivery country
 * Taxes, shipping costs and order subtotal are all included in the surcharge amount
 */
add_action( 'woocommerce_cart_calculate_fees','woocommerce_custom_surcharge' );
function woocommerce_custom_surcharge() {
  global $woocommerce;
 
	if ( is_admin() && ! defined( 'DOING_AJAX' ) )
		return;

 	$county 	= array('AU');
	$percentage 	= 0.15;

	if ( in_array( $woocommerce->customer->get_shipping_country(), $county ) ) :
		
//		$surcharge = ( $woocommerce->cart->cart_contents_total + $woocommerce->cart->shipping_total ) * $percentage;
		$surcharge = ($woocommerce->cart->shipping_total ) * $percentage;
		$woocommerce->cart->add_fee( 'Fuel Surcharge', $surcharge, true, '' );
	endif;
 
}

/**
 * Add a 1% surcharge to your cart / checkout based on delivery country
 * Taxes, shipping costs and order subtotal are all included in the surcharge amount
 */
add_action( 'woocommerce_cart_calculate_fees','woocommerce_warehouse_picking_charge' );
function woocommerce_warehouse_picking_charge() {
  global $woocommerce;
	if ( is_admin() && ! defined( 'DOING_AJAX' ) )
		return;

		$handling_fee = $_SESSION["cart_less_samples"] * 20;
		$woocommerce->cart->add_fee( 'Warehouse Handling Fee', $handling_fee, true, '' );
}

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