Rework packaging to be a sloppy build
As per Guido's comments, https://source.puri.sm/Librem5/ModemManager/merge_requests/4#note_47255, it makes sense to change the package to a sloppy build.
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As per Guido's comments, https://source.puri.sm/Librem5/ModemManager/merge_requests/4#note_47255, it makes sense to change the package to a sloppy build.