Inject temporary jenkins-formula-2019.2.19 repo to unlock testing

TODO: proper repo
TODO: switch tcp-qa to proper repo

Change-Id: Ibee4a49ca02df18bc99188b5b31913b09ea4adb1
diff --git a/jobs/pipelines/swarm-create-cfg-config-drive.groovy b/jobs/pipelines/swarm-create-cfg-config-drive.groovy
index 95990c6..2d82832 100644
--- a/jobs/pipelines/swarm-create-cfg-config-drive.groovy
+++ b/jobs/pipelines/swarm-create-cfg-config-drive.groovy
@@ -206,6 +206,11 @@
    - sed -i -e '/^PermitRootLogin/s/.*/PermitRootLogin yes/' /etc/ssh/sshd_config
    - service sshd restart
 
+apt:
+  sources:
+    jenkins-formula:
+      source: deb http://mirror.seed01-bud.infra.mirantis.net/mcp/review/130026/salt-formulas/xenial xenial main
+
 merge_how: "dict(recurse_array)+list(append)"
 """
     writeFile(file: "user_data2", text: user_data2, encoding: "UTF-8")