Use v2 again.

We decided not to have a new config set.

Co-authored-by: Anna Headley <hackartisan@users.noreply.github.com>
Co-authored-by: Carolyn Cole <carolyncole@users.noreply.github.com>
Co-authored-by: Eliot Jordan <eliotjordan@users.noreply.github.com>
Co-authored-by: James R. Griffin III <jrgriffiniii@users.noreply.github.com>

lib/tasks/pulsearch.rake

@@ -40,6 +40,6 @@ namespace :pulsearch do
   private
 
     def url_for_file(file)
-      "https://raw.githubusercontent.com/pulibrary/pul_solr/main/solr_configs/catalog-production-v3/#{file}"
+      "https://raw.githubusercontent.com/pulibrary/pul_solr/main/solr_configs/catalog-production-v2/#{file}"
     end
 end