Get tests passing with Solr 9

[sandbergja]

• [x] #359
• [ ] Make sure cicognara configuration can load
• [ ] Make sure lae-blacklight configuration can load
• [ ] Make sure dpul-blacklight configuration can load
• [ ] Make sure pdc-discovery configuration can load
• [ ] Make sure pulmap configuration can load
• [ ] Make sure figgy configuration can load
• [ ] Make sure blacklight-core-old configuration can load (or remove it if it is no longer needed)
• [ ] Make sure pulfalight-staging configuration can load
• [ ] Make sure libwww-staging configuration can load
• [ ] Make sure blacklight-core configuration can load
• [ ] Make sure pulfalight-production configuration can load
• [ ] Make sure oawaiver configuration can load
• [ ] Make sure tests pass

A way that you can see errors with solr 9.2.0:

1. Locally, update the solr version in Rakefile to 9.2.0
2. Locally, bundle exec rake solr:start
3. In your browser, go to http://localhost:8888/solr/#/~logging and see what errors you have