Elastic search EOL version upgrade

indexer-core/pom.xml

@@ -19,7 +19,7 @@
 		<gson.version>2.9.1</gson.version>
 		<netty.version>4.1.70.Final</netty.version>
 		<spring-webmvc.version>5.3.22</spring-webmvc.version>
-		<os-core-common.version>0.21.0</os-core-common.version>
+		<os-core-common.version>0.26.0-rc2</os-core-common.version>
 		<tomcat-embed-core.version>9.0.75</tomcat-embed-core.version>
 	</properties>