updated release calendar

Author: johnmarco

articles/openshift/support-lifecycle.md

@@ -99,6 +99,7 @@ See the following guide for the [past Red Hat OpenShift Container Platform (upst
 |4.8|July 2021| Sept 15 2021|4.10 GA|
 |4.9|November 2021| February 1 2022|4.11 GA|
 |4.10|March 2022| June 21 2022|4.12 GA|
+|4.11|August 2022| March 2 2023|4.13 GA|
 
 ## FAQ