fix: upgrade org.elasticsearch.client:elasticsearch-rest-high-level-client from 6.8.5 to 6.8.6

Snyk has created this PR to upgrade org.elasticsearch.client:elasticsearch-rest-high-level-client from 6.8.5 to 6.8.6.

See this package in NPM:
https://www.npmjs.com/package/org.elasticsearch.client:elasticsearch-rest-high-level-client

See this project in Snyk:
https://app.snyk.io/org/securecodebox/project/7b825c3e-7e42-41d5-9edc-010e4af428f3?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

scb-persistenceproviders/elasticsearch-persistenceprovider/pom.xml

@@ -31,7 +31,7 @@
     <version>0.0.1-SNAPSHOT</version>
 
     <properties>
-        <elasticsearch.version>6.8.5</elasticsearch.version>
+        <elasticsearch.version>6.8.6</elasticsearch.version>
     </properties>