Automatically update shared test server

[jayofdoom]

Our shared test server currently only receives manual periodic updates. Instead, we should use automation to update it on a set schedule.

Define and document an update schedule, and implement automation to perform it.

[dave-gantenbein]

Hey team! Please add your planning poker estimate with ZenHub @dejanzele @jayofdoom @kannon92 @richscott

[ClifHouck]

I'll take a look at this.