How to modify HTML in WordPress core file

Question

I would like to modify some HTML stuffs in a function called pagination() in this Wordpress core file:

wp-admin/includes/class-wp-list-table.php

I have been searching for relevant hook which can be used to update HTML in the above function, but I have not found one.

Here are HTML I would like to change the last part of the followings:

      protected function pagination( $which ) {
        if ( empty( $this->_pagination_args ) ) {
          return;
        }

        $total_items     = $this->_pagination_args['total_items'];
        $total_pages     = $this->_pagination_args['total_pages'];
        $infinite_scroll = false;
        if ( isset( $this->_pagination_args['infinite_scroll'] ) ) {
          $infinite_scroll = $this->_pagination_args['infinite_scroll'];
        }

        if ( 'top' === $which && $total_pages > 1 ) {
          $this->screen->render_screen_reader_content( 'heading_pagination' );
        }

        // I would like to change this part of pagination():
        $output = '<span class="displaying-num">' . sprintf(
          /* translators: %s: Number of items. */
          _n( '%s item', '%s items', $total_items ),
          number_format_i18n( $total_items )
        ) . '</span>';
                    
         ..........................................
         ...........................................etc.
         
         

It should be:

        global $wp_query;
        $page = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
        $ppp = get_query_var('posts_per_page');
        $end = $ppp * $page;
        $start = $end - $ppp + 1;
     //   $total = $wp_query->found_posts;
     //   echo "Showing posts $start through $end of $total total.";

        $output = '<span class="displaying-num">' . "Showing $start to $end of " . sprintf(
              /* translators: %s: Number of items. */
              _n( '%s item', '%s items', $total_items ),
              number_format_i18n( $total_items )
          ) . '</span>';
               

The above codes are used for the post list of a Custom Post Type on my WP website.

Can anyone please advise what hook should be for the above purpose?