Bump elasticsearch-rest-client from 6.6.0 to 6.8.15 in /java/elastic-search#41

dependabot[bot] wants to merge 1 commit into

masterEkStep-DevCon-2020/devcon-registry:masterfrom

dependabot/maven/java/elastic-search/org.elasticsearch.client-elasticsearch-rest-client-6.8.15EkStep-DevCon-2020/devcon-registry:dependabot/maven/java/elastic-search/org.elasticsearch.client-elasticsearch-rest-client-6.8.15Copy head branch name to clipboard