Update F-Droid relase

[SkyWheel]

The fdroid version seems to be abandoned. Who can sort out update for the fdroid repo?

[ildar]

1. checking https://f-droid.org/wiki/page/libretasks.app looks allright.
2. But then searching fdroiddata emerges this: https://gitlab.com/fdroid/fdroiddata/merge_requests/3039
3. So the good place for further discussion is right there.

[spaetz]

Given that 0.7.1 seems to be available via fdroid, this.issue can be closed now?!?

[biotinker]

Yep, closing