Update banner with open to registrations for appium conf [deploy site]

Author: harsha509

website_and_docs/layouts/partials/announcement-banner.html

@@ -6,8 +6,8 @@
     <div class="row g-0 justify-content-center">
       <div class="alert alert-{{ $color }} col-12 fade show mb-0 p-0 -bg-{{ $color }}" role="alert">
         <h4 class="alert-heading text-center m-0">
-          Appium Conf 2024 Call for Proposals is now open! Submissions close 28 July.
-          <a href="https://appiumconf.com/call-for-proposals/?utm_medium=Referral&utm_source=selenium.dev&utm_campaign=cfp" target='_blank' aria-pressed="true">Learn more & submit</a></h4>
+          Registrations open for Appium Conf 2024 online - live on 13 Sep.
+          <a href="https://confengine.com/conferences/appium-conf-2024/register/selection/?utm_medium=Referral&utm_source=selenium.dev&utm_campaign=cfp" target='_blank' aria-pressed="true">Register now!</a></h4>
       </div>
     </div>
   </div>