CI: add missing dupload parameter

4 jobs for master in 1 minute and 34 seconds
Status Job ID Name Coverage
  Build
passed #78
build

00:01:19

passed #75
build

00:01:20

 
  Upload
failed #77
allowed to fail manual
upload

00:00:14

failed #76
allowed to fail manual
upload

00:00:23

 
Name Stage Failure
failed
upload Upload
 wumpe_1.0_amd64.buildinfo, size ok, md5sum ok, sha1sum ok, sha256sum ok
wumpe_1.0_amd64.changes ok ]
Uploading (scp) to ssn_repo (repo.stusta.mhn.de)
[ Uploading job wumpe_1.0_amd64
wumpe_1.0.dsc 0.8 kBHost key verification failed.
lost connection

dupload: error: scp wumpe_1.0.dsc failed
ERROR: Job failed: exit code 1