[maven-release-plugin] prepare release 1.2.1
[maven-release-plugin] prepare release 1.2.1

Graylog2/graylog-plugin-alarmcallback-rundeck,Graylog2/graylog-alarmcallback-rundeck,Graylog2/graylog-plugin-rundeck,Graylog2/graylog-plugin-rundeck