Synchronize php code sniffer and wp coding standards versions with that of plugin-blocks.
Adjust phpcs configuration and fix any sniff errors that are thrown due to the changes.
https://github.com/greenpeace/planet4-plugin-blocks/blob/develop/composer.json#L12
https://github.com/greenpeace/planet4-plugin-engagingnetworks/blob/develop/composer.json#L13
https://github.com/greenpeace/planet4-master-theme/blob/develop/composer.json#L41