chore: Enable the new Rubocop rules (#7122)

fixes: https://linear.app/chatwoot/issue/CW-1574/renable-the-disabled-rubocop-rules

spec/jobs/inboxes/fetch_imap_email_inboxes_job_spec.rb

@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-RSpec.describe Inboxes::FetchImapEmailInboxesJob, type: :job do
+RSpec.describe Inboxes::FetchImapEmailInboxesJob do
   let(:account) { create(:account) }
   let(:imap_email_channel) do
     create(:channel_email, imap_enabled: true, imap_address: 'imap.gmail.com', imap_port: 993, imap_login: 'imap@gmail.com',

spec/jobs/inboxes/fetch_imap_emails_job_spec.rb

@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-RSpec.describe Inboxes::FetchImapEmailsJob, type: :job do
+RSpec.describe Inboxes::FetchImapEmailsJob do
   include ActionMailbox::TestHelper
 
   let(:account) { create(:account) }

spec/jobs/inboxes/sync_widget_pre_chat_custom_fields_job_spec.rb

@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-RSpec.describe Inboxes::SyncWidgetPreChatCustomFieldsJob, type: :job do
+RSpec.describe Inboxes::SyncWidgetPreChatCustomFieldsJob do
   pre_chat_fields = [{
     'label' => 'Developer Id',
     'name' => 'developer_id'

spec/jobs/inboxes/update_widget_pre_chat_custom_fields_job_spec.rb

@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-RSpec.describe Inboxes::UpdateWidgetPreChatCustomFieldsJob, type: :job do
+RSpec.describe Inboxes::UpdateWidgetPreChatCustomFieldsJob do
   pre_chat_fields = [{
     'label' => 'Developer Id',
     'name' => 'developer_id'