fix: use proper order for releases
Our (Fedora) appdata validator returns an error like:
org.kde.plasma.dialer.appdata.xml: FAILED:
• tag-invalid : <release> versions are not in order [6.2.0 before 24.08.0]
Validation of files failed
note: command used appstream-util validate-relax --nonet org.kde.plasma.dialer.appdata.xml
This MR should fix the problem