That is really odd. I just uploaded the one in the repo to oshpark and they took it no problem
We detected a 2 layer board of 0.83 x 1.33 inches (21.1 x 33.8mm)
3 boards will cost $5.50
You don't need the board to wire this up though. It just makes things a little easier. The board is a bit outdated from the final electrical design anyway. I decided to direct power the servo from the buck converter instead of from the arduino so the capacitor is no longer needed. I had ordered the boards before I made that design change.