* fix(ci): stop hourly versions dropping below a tagged or already-shipped build
Hourly/daily/adhoc based their X.Y.Z on GitHub releases, not git tags. When
v1.4.202 was tagged and then its GitHub release vanished, the next hourlies
shipped as 1.4.202-hourly — below both stable 1.4.202 and the 1.4.203-hourly
builds already installed, so electron-updater stopped offering updates.
Read main's v* tags and already-published channel tags instead.
* docs(ci): record that 1.4.202's release was unpublished for a bug
The leftover tag is what hourly must still honor; this was not a failed cut.