chore: Provider APIs for SMS Channel - Bandwidth (#3889)

fixes: #3888

spec/controllers/webhooks/sms_controller_spec.rb

@@ -0,0 +1,12 @@
+require 'rails_helper'
+
+RSpec.describe 'Webhooks::SmsController', type: :request do
+  describe 'POST /webhooks/sms/{:phone_number}' do
+    it 'call the sms events job with the params' do
+      allow(Webhooks::SmsEventsJob).to receive(:perform_later)
+      expect(Webhooks::SmsEventsJob).to receive(:perform_later)
+      post '/webhooks/sms/123221321', params: { content: 'hello' }
+      expect(response).to have_http_status(:success)
+    end
+  end
+end