Update video on the frontpage to use a more recent one

Signed-off-by: Manuel Rego Casasnovas <[email protected]>

Author: mrego

_includes/hero.html

@@ -16,7 +16,7 @@
       </p>
     </div>
     <div class="column">
-      <iframe style="width: 100%; aspect-ratio: 560/315;" src="https://www.youtube.com/embed/RdtlD_7JAs8" title="A Year of Servo Reboot: Where Are We Now? by Rakhi Sharma at Open Source Summit North America 2024" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+      <iframe style="width: 100%; aspect-ratio: 560/315;" src="https://www.youtube.com/embed/mMTwQUKL288" title="Servo Project Updates at Linux Foundation Europe Member Summit 2024 by Manuel Rego" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
       </video>
     </div>
   </div>