Bump gson from 2.8.2 to 2.8.9 in /maven-java#344

dependabot[bot] wants to merge 1 commit intomasterapache/openwhisk-devtools:masterfrom

dependabot/maven/maven-java/com.google.code.gson-gson-2.8.9apache/openwhisk-devtools:dependabot/maven/maven-java/com.google.code.gson-gson-2.8.9Copy head branch name to clipboard