needed to disable host key verification

.gitlab-ci.yml

@@ -19,4 +19,4 @@ Build:
 Deploy:
     stage: deploy
     script:
-        - sshpass -p "$WOLKE_PASSWORD" scp -r /tmp/cr-site/ $WOLKE_USER@wolke.img.univie.ac.at:/var/www/html/documentation/general/
+        - sshpass -p "$WOLKE_PASSWORD" scp -oStrictHostKeyChecking=no -r /tmp/cr-site/ $WOLKE_USER@wolke.img.univie.ac.at:/var/www/html/documentation/general/