[dev help wanted] upgrade Solr to use Lucene 9.9.1

[Christine Poerschke (BLOOMBERG/ LONDON)]

Hi Everyone,

Apache Lucene 9.9.1 was recently released - would you be interested in 
contributing to update Solr to use it?

Please see https://issues.apache.org/jira/browse/SOLR-17097 for details.

Thanks,
Christine