WIP Fix:Build Fdroid build fixed by switching buildserver to trixie

[christf]

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[jkoan]

From what I see here Trixi is not a valid option. Probably the best would be to use the one without a suffix because that way we (hopefully) don't meet to change it in the future

[mvglasow]

Probably the best would be to use the one without a suffix because that way we (hopefully) don't meet to change it in the future

Doing so would upgrade to us to a new release whenever F-Droid decides to switch. If the new release comes with breaking changes, that would break things for us instantly and we would have to react quickly.

If, on the other hand, we explicitly rely on bookworm and monitor for new releases, we can try the new release, adapt CI to it and switch over once we have verified everything works.

[jkoan]

@mvglasow yes, if they would make sure that the old image keeps working, but this isn't the case