[TEC] Replace plugin icon image on /wp-admin/update-core.php

snippet.php

<?php
add_action( 'admin_print_footer_scripts-update-core.php', function() {
?>
    <script>
    ( () => {
        // saving this plugin row class because we'll be using it in multiple places
        const ROW_CLASS = 'plugin-title';

        // collecting names of all plugins with updates available
        const plugins = document.querySelectorAll( `.${ ROW_CLASS } strong` );

        // if no updates available, then we stop here
        if ( ! plugins ) {
            return;
        }

        // plugins have updates available, prepare for TEC
        const PLUGINS_URL = <?php echo wp_json_encode( plugins_url() ); ?>;
        const IMAGE_PATH = 'the-events-calendar/common/src/resources/images/logo/the-events-calendar.svg';

        // Replace the image, only invoked if seeker found a match
        const replacer = plugin => {
            const row = plugin.closest( `.${ ROW_CLASS }` );
            const img = row.querySelector( 'img' );

            img.setAttribute( 'src', `${ PLUGINS_URL }/${ IMAGE_PATH }` );
        };

        // Seeking function that seeks out "The Events Calendar"
        const seeker = plugin => {
            const { innerText: text } = plugin;

            if ( 'The Events Calendar' === text ) {
                replacer( plugin );
            }
        };

        //  Call the seeker function on each plugin
        plugins.forEach( seeker );
    } )();
    </script>
<?php
} );