Please do not update applications to alpha version

[subsys-R9boq8]

Important first questions

1. Is your FFUpdater up-to-date? If not, please abort and update FFUpdater.
   Yes.

2. Do you spot similar issues in https://github.com/Tobi823/ffupdater/issues? If yes, please abort and add your error message as a comment to the existing issue.
   No.

Describe the bug
FFUpdater updated Orbot installed on device to an alpha version which has bug that serverely impacts functionality.

To Reproduce

1. Install FFUpdater from Github or F-Droid
2. Install Orbot from FFUpdater

Expected behavior
Versions that includes "ALPHA" or "alpha" in their version string often contains servere bugs and shall be ignored instead of installed without notice.