Bump gson from 2.8.5 to 2.8.9 in /shielddb-gson-backend#17

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dependabot/maven/shielddb-gson-backend/com.google.code.gson-gson-2.8.9kuroidoruido/ShieldDB:dependabot/maven/shielddb-gson-backend/com.google.code.gson-gson-2.8.9Copy head branch name to clipboard