Rollback nginx back to 1.16
So there was a major release from 1.16 to 1.17 which probably is why I'm seeing weird
403's (not entirely sure why though),
On the github repo I saw they updated to 1.17.3 for mainline, but stable was 1.16. The last elmhost image we built was on august 25th.
Hopefully going back down to nginx v1.16.1 will help out the production issues