In order to make it easier to see what's happening inside get-atomic-buildnr.sh
write the result to a file that can be read by the caller. Not quite as
elegant, but hopefully more practical to see what's going wrong when no new
build number is created.
Make sure that post-releasenotes is successfull by actually posting a release
artifact (apparently the gh release action otherwise quietly fails).
Try to ensure we find the Android APK when uploading to the release.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
30efede730