When LibUp upgrades the "mediawiki/mediawiki-codesniffer to version >=43.0.0 the plugin dealerdirect/phpcodesniffer-composer-installer must be accepted.
This can be reached by saying yes to the composer dialog:
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
Or by adding to composer.json (when missing):
"config": {
"allow-plugins": {
"dealerdirect/phpcodesniffer-composer-installer": true
}
}It is possible that the key config.allow-plugins already exists for other plugins.