chore: Limit conversation resolution Job (#6433)

We will be adding a limit to the resolution job so that it is performed at a spaced interval. This will ensure there won't be a sudden spike in resource usage

fixes: chatwoot/product#707

spec/jobs/conversations/resolution_job_spec.rb

@@ -9,7 +9,7 @@ RSpec.describe Conversations::ResolutionJob, type: :job do
   it 'enqueues the job' do
     expect { job }.to have_enqueued_job(described_class)
       .with(account)
-      .on_queue('medium')
+      .on_queue('low')
   end
 
   it 'does nothing when there is no auto resolve duration' do
@@ -23,4 +23,12 @@ RSpec.describe Conversations::ResolutionJob, type: :job do
     described_class.perform_now(account: account)
     expect(conversation.reload.status).to eq('resolved')
   end
+
+  it 'resolved only a limited number of conversations in a single execution' do
+    stub_const('Limits::BULK_ACTIONS_LIMIT', 2)
+    account.update(auto_resolve_duration: 10)
+    create_list(:conversation, 3, account: account, last_activity_at: 13.days.ago)
+    described_class.perform_now(account: account)
+    expect(account.conversations.resolved.count).to eq(Limits::BULK_ACTIONS_LIMIT)
+  end
 end