Running composer update clinikal resulting in error on google cloud

Following the directions and executing composer update clinikal after updating the composer.json file I am getting a long error like the below.

Any idea what is off?

Package "clinikal" listed for update is not installed. Ignoring. Loading composer repositories with package information

Could not fetch https://api.github.com/repos/israeli-moh/clinikal-backend/tags?per_page=100, please create a GitHub OAuth token to go over the API rate limit Head to https://github.com/settings/tokens/new?scopes=repo&description=Composer+on+openemr-particle-vm+2020-10-13+1 659 to retrieve a token. It will be stored in "/root/.config/composer/auth.json" for future use by Composer. Token (hidden): Token stored successfully. Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages. Problem 1

dompdf/dompdf v0.7.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
dompdf/dompdf v0.7.0 requires ext-gd * -> the requested PHP extension gd is missing from your system.
dompdf/dompdf v0.7.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
Installation request for dompdf/dompdf 0.7.0 -> satisfiable by dompdf/dompdf[v0.7.0]. To enable extensions, verify that they are enabled in those .ini files:
/etc/php/7.0/cli/php.ini
/etc/php/7.0/cli/conf.d/10-opcache.ini
/etc/php/7.0/cli/conf.d/10-pdo.ini
/etc/php/7.0/cli/conf.d/20-calendar.ini
/etc/php/7.0/cli/conf.d/20-ctype.ini
/etc/php/7.0/cli/conf.d/20-exif.ini
/etc/php/7.0/cli/conf.d/20-fileinfo.ini
/etc/php/7.0/cli/conf.d/20-ftp.ini
/etc/php/7.0/cli/conf.d/20-gettext.ini
/etc/php/7.0/cli/conf.d/20-iconv.ini
/etc/php/7.0/cli/conf.d/20-json.ini
/etc/php/7.0/cli/conf.d/20-phar.ini
/etc/php/7.0/cli/conf.d/20-posix.ini
/etc/php/7.0/cli/conf.d/20-readline.ini
/etc/php/7.0/cli/conf.d/20-shmop.ini
/etc/php/7.0/cli/conf.d/20-sockets.ini
/etc/php/7.0/cli/conf.d/20-sysvmsg.ini
/etc/php/7.0/cli/conf.d/20-sysvsem.ini
/etc/php/7.0/cli/conf.d/20-sysvshm.ini
/etc/php/7.0/cli/conf.d/20-tokenizer.ini You can also run php --ini inside terminal to see which files are used by PHP in CLI mode.

MohGovIL / Clinical-Documentation