Build a simplified release management process

[tedliu1]

Build a simplified yet actionable release process referring to ASF Incubator's one

Please referred to #101. The release management process should be simple and actionable. It will be subject to the OSSChat Pilot Group's triage to keep the most required processes to start with.

[davidzollo]

this is DolphinScheduler publish process : DolphinScheduler publish process

but I think it's too complicated