Update composer.json
Update composer.json

```pt-get install --assume-yes php7.3 libapache2-mod-php7.3 php7.3-common php7.3-gd php7.3-mysql php7.3-curl php7.3-intl php7.3-xsl php7.3-mbstring php7.3-zip php7.3-bcmath php7.3-iconv php7.3-soap php7.3-dom```

```root@magento235:~# php -v
PHP 7.3.21-1+ubuntu18.04.1+deb.sury.org+1 (cli) (built: Aug  7 2020 14:44:10) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.21, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.21-1+ubuntu18.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies```
section-io/magento-metrics,section-io/magento-metrics