OCPBUGS#347772: [OSDK] Fix Golang version in prereqs

Author: michaelryanpeter

modules/osdk-common-prereqs.adoc

@@ -36,7 +36,7 @@ endif::[]
 * Operator SDK CLI installed
 * OpenShift CLI (`oc`) {product-version}+ installed
 ifdef::golang[]
-* link:https://golang.org/dl/[Go] 1.19+
+* link:https://golang.org/dl/[Go] 1.21+
 endif::[]
 ifdef::ansible[]
 * link:https://docs.ansible.com/ansible/latest/roadmap/ROADMAP_2_15.html[Ansible] 2.15.0