Sync to a task-champion-server is broken in the nightly

### Describe your issue

I've tried to use the nightly that I built myself with flutter to connect to my task warrior server. However, it appears that the connection remains stalled and nothing happened. I couldn't see any error message on the server. I didn't have the opportunity to debug this with `adb` yet, might provide you with some more details on this.

Likewise, I might, add that I run the server locally on a VM with no HTTPS enabled. Likewise, I am not sure if this would be an issue.

### Steps to reproduce

1. Build the app with Flutter.
2. Install it on Android freshly
3. Change the Sync to be on Task v3
4. Add the task server configuration.
5. sync

### What was the expected result?

To see all my task's I have in my current task warrior.

### Put here any screenshots or videos (optional)

_No response_

### How can we contact you (optional)

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### Would you like to work on this issue?

None

### By submitting this issue, I have confirmed that:

- [x] I have starred the repo ⭐ and watched 👀 it on GitHub and followed the contribution guidelines.

Es werden keine Dateien, Tests oder Code-Einstiegspunkte genannt. Reproduziere zunächst den nächtlichen Flutter Android build gegen den lokal gehosteten, nicht über HTTPS erreichbaren Task v3 server und untersuche das Synchronisierungsverhalten sowie die verfügbaren Logs; als erledigt gilt dies, wenn die Synchronisierung abgeschlossen wird, Aufgaben erscheinen oder ein eindeutiger Fehler die Ursache des Fehlschlags identifiziert.

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