docker: Fix wrong path in entrypoint
docker: Fix wrong path in entrypoint

This shouldn't have caused any issues because it requires a
specific environment variable to be set.
porksmash/swarfarm,porksmash/swarfarm,porksmash/swarfarm,porksmash/swarfarm,PeteAndersen/swarfarm,PeteAndersen/swarfarm,PeteAndersen/swarfarm,PeteAndersen/swarfarm