Fix typo in role assetstore types
Fix typo in role assetstore types

GridFS assetstore types cannot currently be specified without this fix, since the name `girdfs` does not match the `dict` key elsewhere in this script (`gridfs`).
adsorensen/girder,data-exp-lab/girder,RafaelPalomar/girder,Kitware/girder,manthey/girder,RafaelPalomar/girder,data-exp-lab/girder,data-exp-lab/girder,Xarthisius/girder,sutartmelson/girder,kotfic/girder,RafaelPalomar/girder,sutartmelson/girder,Xarthisius/girder,Kitware/girder,girder/girder,jbeezley/girder,RafaelPalomar/girder,jbeezley/girder,manthey/girder,data-exp-lab/girder,Kitware/girder,manthey/girder,sutartmelson/girder,data-exp-lab/girder,adsorensen/girder,sutartmelson/girder,Xarthisius/girder,kotfic/girder,jbeezley/girder,Kitware/girder,RafaelPalomar/girder,girder/girder,sutartmelson/girder,Xarthisius/girder,adsorensen/girder,kotfic/girder,adsorensen/girder,Xarthisius/girder,jbeezley/girder,girder/girder,adsorensen/girder,kotfic/girder,girder/girder,kotfic/girder,manthey/girder