Bump gson from 2.8.5 to 2.8.9 in /otus_2019_06/hw08-maven#55

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dependabot/maven/otus_2019_06/hw08-maven/com.google.code.gson-gson-2.8.9deft1991/otus:dependabot/maven/otus_2019_06/hw08-maven/com.google.code.gson-gson-2.8.9Copy head branch name to clipboard