doc: increment current version

Author: ktor

README.adoc

@@ -1,6 +1,6 @@
 = Liferay Portal DB setup core
 :liferay-version: 7.3.6
-:current-db-setup-core-version: 7.3.601
+:current-db-setup-core-version: 7.3.602
 :TOC:
 
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