Added max retries and concurrency to sidekiq setting

hyrax/config/initializers/sidekiq.rb

@@ -14,4 +14,4 @@ end
 Sidekiq.configure_client do |s|
   # s.redis = redis_conn
   s.redis = redis_config
-end
+end
\ No newline at end of file

hyrax/config/sidekiq.yml

 :queues:
   - default
   - import # added
-  - export # added
\ No newline at end of file
+  - export # added
+
+:max_retries: 5
+
+development:
+  :concurrency: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+
+production:
+  :concurrency: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>