Fix error within error when limiting backtrace to 3 lines (#13120)

Fix #13086, close #13113

app/lib/request.rb

@@ -73,8 +73,6 @@ class Request
       response.body_with_limit if http_client.persistent?
 
       yield response if block_given?
-    rescue => e
-      raise e.class, e.message, e.backtrace[0]
     ensure
       http_client.close unless http_client.persistent?
     end

app/lib/sidekiq_error_handler.rb

@@ -1,13 +1,24 @@
 # frozen_string_literal: true
 
 class SidekiqErrorHandler
+  BACKTRACE_LIMIT = 3
+
   def call(*)
     yield
   rescue Mastodon::HostValidationError
     # Do not retry
+  rescue => e
+    limit_backtrace_and_raise(e)
   ensure
     socket = Thread.current[:statsd_socket]
     socket&.close
     Thread.current[:statsd_socket] = nil
   end
+
+  private
+
+  def limit_backtrace_and_raise(e)
+    e.set_backtrace(e.backtrace.first(BACKTRACE_LIMIT))
+    raise e
+  end
 end

app/workers/activitypub/delivery_worker.rb

@@ -52,13 +52,9 @@ class ActivityPub::DeliveryWorker
       end
     end
 
-    begin
     light.with_threshold(STOPLIGHT_FAILURE_THRESHOLD)
          .with_cool_off_time(STOPLIGHT_COOLDOWN)
          .run
-    rescue Stoplight::Error::RedLight => e
-      raise e.class, e.message, e.backtrace.first(3)
-    end
   end
 
   def failure_tracker