S3 connector: fix video embed link (#257)

Author: Paul-Cornell

snippets/general-shared-text/s3.mdx

@@ -5,7 +5,7 @@ The following video shows how to fulfill the minimum set of S3 prerequisites:
 <iframe
 width="560"
 height="315"
-src="https://www.youtube.com/embed/hFTzMR12_A4"
+src="https://www.youtube.com/embed/hyDHfhVVAhs"
 title="YouTube video player"
 frameborder="0"
 allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"