How to update last author ” and ” to “, “?

Hello Team,

I would like to overwrite line 155 Path: /co-authors-plus/template-tags.php

From
$default_between_last = ( defined( 'COAUTHORS_DEFAULT_BETWEEN_LAST' ) ) ? COAUTHORS_DEFAULT_BETWEEN_LAST : __( ' and ', 'co-authors-plus' );

To
$default_between_last = ( defined( 'COAUTHORS_DEFAULT_BETWEEN_LAST' ) ) ? COAUTHORS_DEFAULT_BETWEEN_LAST : __( ', ', 'co-authors-plus' );

How to make that change using functions.php child theme so whenever plugin updated I don’t have to overwrite manually. I am just updating ” and ” with “, ” it’s a minor change.

Thanks
Group of Oceninfo