httpclient dependency does not appear to be maintained

[jcoyne]

https://rubygems.org/gems/httpclient

[dnoneill]

It looks like we won't be able to migrate until traject migrates. I updated httpclient to http (using the gem we are already using) and I am getting an error from the gem ```.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/traject-3.8.2/lib/traject/solr_json_writer.rb:366:in commit': undefined method receive_timeout' for an instance of HTTP::Client (NoMethodError)

original_timeout = @http_client.receive_timeout```

I have linked to a draft PR in case we update traject
https://github.com/sul-dlss/searchworks_traject_indexer/pull/1532/files