debinstall #72025 "ldi upload unsigned.changes" should exit non-zero [validation pending]

test_upload_unsigned_changes fails because the exception is swallowed and the command exits 0.

prioritynormal
typebug
done in2.5.0
load0.100
load left0.000
closed by#f0b5d32c26a8 upload: error out if we didn't do anything (closes #72025)