After updating the composer in local or in an automated testing you will face the following issue
composer/installers contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "composer/installers" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
y - add package to allow-plugins in composer.json and let it run immediately
n - add package (as disallowed) to allow-plugins in composer.json to suppress further prompts
d - discard this, do not change composer.json and do not allow the plugin to run
? - print help
Do you trust "composer/installers" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
cweagans/composer-patches contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "cweagans/composer-patches" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
oomphinc/composer-installers-extender contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "oomphinc/composer-installers-extender" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
drupal/core-composer-scaffold contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "drupal/core-composer-scaffold" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
drupal/core-project-message contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "drupal/core-project-message" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
vardot/varbase-updater contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "vardot/varbase-updater" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
dealerdirect/phpcodesniffer-composer-installer (installed globally) contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
dealerdirect/phpcodesniffer-composer-installer (installed globally) contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "dealerdirect/phpcodesniffer-composer-installer" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?] y
"config": {
"bin-dir": "bin/",
"secure-http": false,
"optimize-autoloader": true,
"preferred-install": {
"drupal/core": "dist"
},
"allow-plugins": {
"composer/installers": true,
"cweagans/composer-patches": true,
"oomphinc/composer-installers-extender": true,
"drupal/core-composer-scaffold": true,
"drupal/core-project-message": true,
"vardot/varbase-updater": true
}
},