Solr Remote is trying to access the wrong core name with a Solr 10 server

It's assuming that a core designed for Solr 10 is available, but XWiki cores are currently designed for Solr 9 and should be named according to that. It does not means Solr 10 cannot be used, but it does not make sense to name a Solr 9 core with 10 in the name as it will mess with the future migration.