Merge pull request #100329 from anarnold97/OADP-support-update

OCP 4.18 missing from support table

Author: shdeshpa07

modules/oadp-operator-supported.adoc

@@ -37,6 +37,7 @@ a|
 * 4.15
 * 4.16
 * 4.17
+* 4.18
 |10 Jul 2024
 |Release of 1.5
 |Release of 1.6