symfony new flex_package_sync_test
cd flex_package_sync_test
composer require encore
composer require symfony/ux-turbo

# at this point, package.json will contain `@hotwired/turbo` at some version - e.g. `^7.0.0-beta.5`
# CHANGE this to something else - e.g. `^7.1.0`

composer update
# this will change the version back to `^7.0.0-beta.5`