Wargroove: Fixed commander.json file never being closed by the mod (#1841)

The Wargroove mod didn't close the commander.json's file handle. The Wargroove mod will now close that file handle. The change for the mod can be viewed here: FlySniper/WargrooveArchipelagoMod@fc9aeb3
The change can be verified as present in this repository by viewing the binary data in the modAssets.dat file and searching for "commander.json"

Author: FlySniper