Bump elasticsearch from 0.19.8 to 6.8.13 in /SomeBenchmark/YCSB-0.1.4/elasticsearch#22

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dependabot/maven/SomeBenchmark/YCSB-0.1.4/elasticsearch/org.elasticsearch-elasticsearch-6.8.13vineodd/PIMSim:dependabot/maven/SomeBenchmark/YCSB-0.1.4/elasticsearch/org.elasticsearch-elasticsearch-6.8.13Copy head branch name to clipboard