[ci] remove maxParallel limits on Azure DevOps (#3725)
[ci] remove maxParallel limits on Azure DevOps (#3725)


microsoft/LightGBM,microsoft/LightGBM,microsoft/LightGBM,henry0312/LightGBM,henry0312/LightGBM,henry0312/LightGBM,microsoft/LightGBM,henry0312/LightGBM,henry0312/LightGBM,microsoft/LightGBM