DOC-5549 Added that 7.22.0 uses RHEL 9.6 to the RHEL version vs. Redis Enterprise version table (#1949)

Author: rrelledge

content/embeds/supported-platforms-embed.md

@@ -47,6 +47,7 @@ The following table shows which Redis Enterprise Software version first tested a
 | 8.9 | 7.2.4 |
 | 9.3 | 7.4.2 |
 | 9.5 | 7.8.2 |
+| 9.6 | 7.22.0 |
 
 ## Operating system compatibility policy