Revert the blocking call change

This caused the connection to hang without returning any work. Letting
this one for later.

---

Change-type: feature

Author: jvortmann

lib/sidekiq-queue-pause.rb

@@ -53,7 +53,8 @@ def retrieve_work
       end
 
       def retrieve_work_for_queues(qcmd)
-        queue, job = redis { |conn| conn.blocking_call(conn.read_timeout + TIMEOUT, "brpop", *qcmd, TIMEOUT) }
+        #queue, job = redis { |conn| conn.blocking_call(conn.read_timeout + TIMEOUT, "brpop", *qcmd, TIMEOUT) }
+        queue, job = redis { |conn| conn.brpop(*qcmd) }
         UnitOfWork.new(queue, job, config) if queue
       end
 

spec/sidekiq-queue-pause_spec.rb

@@ -44,7 +44,8 @@
         allow(pausing_fetch).to receive(:redis).and_yield(conn)
 
         expect(described_class::UnitOfWork).to receive(:new).with(queue, job.to_json, config).and_call_original
-        expect(conn).to receive(:blocking_call).with(conn.read_timeout + described_class::TIMEOUT, "brpop", queue, described_class::TIMEOUT)
+        #expect(conn).to receive(:blocking_call).with(conn.read_timeout + described_class::TIMEOUT, "brpop", queue, described_class::TIMEOUT)
+        expect(conn).to receive(:brpop).with(queue)
         expect(conn).to receive(:rpush).with(queue, job.to_json)
 
         unit_of_work = pausing_fetch.retrieve_work_for_queues(queue)