Update release.md

Author: lfrancke

.github/ISSUE_TEMPLATE/release.md

@@ -91,7 +91,7 @@ Marketing tasks can now reference published documentation.
 - [ ] Post an announcement in the GitHub [Discussions Announcement forum](https://github.com/stackabletech/community/discussions/categories/announcements) and make it a pinned discussion while at the same time removing the old pinned thread
 - [ ] Post an announcement in Discord
 - [ ] Post an announcement on DOK Community in the #be-shameless Channel (Ping Lars or Jim)
-- [ ] Post an announcement via OSBA (Ping Lars)
+- [ ] Post an announcement via OSBA (Ping Lars, [email protected])
 - [ ] Send announcement to Kubernetes Podcast (Ping Lars)
 - [ ] Send announcement to Heiser
 - [ ] Ping the stackable-ionos-tech channel or anyone responsible once all tags are created