Update RELEASE-PROCESS.md

[joao-r-reis]

The release process file still says that we need to create the release manually but the binary build workflow does it for us. The only manual step (after pushing the tag) is to go into the release page and edit the description manually (the description will be empty when it is created).

┆Issue is synchronized with this Jira Task by Unito
┆Components: Proxy
┆Issue Number: ZDM-608