Bump hadoop-client from 2.6.5 to 2.7.0 in /java/hadoop#4

dependabot[bot] wants to merge 1 commit intomastermarcusklang/docria:masterfrom

dependabot/maven/java/hadoop/org.apache.hadoop-hadoop-client-2.7.0marcusklang/docria:dependabot/maven/java/hadoop/org.apache.hadoop-hadoop-client-2.7.0Copy head branch name to clipboard