[TENE-216] Adjusted elk.kibana.host property to docker infrastructure
Closes TENE-216
Unfortunately I can't test locally if harvester-manager starts properly after changes because this container has always problems on my computer. Apart from that, build on gitlab failed because of timeout when trying to connect to container registry to push new image :)
... but these are small changes so it should work properly, please verify it - starting up harvester manager.