Bump elasticsearch from 1.7.1 to 6.8.13 in /ontology/elasticsearch/annotation-tree-aggregator#31

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dependabot/maven/ontology/elasticsearch/annotation-tree-aggregator/org.elasticsearch-elasticsearch-6.8.13flaxsearch/BioSolr:dependabot/maven/ontology/elasticsearch/annotation-tree-aggregator/org.elasticsearch-elasticsearch-6.8.13Copy head branch name to clipboard