Move SLES builds to dynamic build machines
We are currently using static build machines for SLES package.
To move to dynamic build machines, we need a SLES docker image.
Some work has already been done towards this by @WarheadsSE.
A custom/temporary SMT node was created. Repositories were edited and pointed to that SMT node so that packages can be installed inside of the image.
Remaining tasks are to go through all dependencies and add them to the base image. After this is done, we can move/recreate the node from a temporary to permanent location for future use.