Increase file upload limit when using UploadWizard role

Otherwise it is limited to uploads of at most 2MB, which is
completely useless. This increases it to 100MB, and hence
matches the value in production

I've included a trailing comma, under protest, because
Ori the Tyrant has deemed it 'local convention'

Change-Id: I8ba3537c616f9fde482179db7fb61ac306d1dc54