Maintenance: Update dependency oauth2 to v2.0.6
Maintenance: Update dependency oauth2 to v2.0.6

zammad/zammad,monotek/zammad,zammad/zammad,monotek/zammad,monotek/zammad,zammad/zammad,zammad/zammad,monotek/zammad,zammad/zammad,monotek/zammad,zammad/zammad,monotek/zammad