Build and push python-predictor-gpu-slim with different versions of cudnn

[deliahu]

Description

• cortexlabs/python-predictor-gpu-slim:master-cuda10.0-cudnn7
• cortexlabs/python-predictor-gpu-slim:master-cuda10.1-cudnn7
• cortexlabs/python-predictor-gpu-slim:master-cuda10.1-cudnn8
• cortexlabs/python-predictor-gpu-slim:master-cuda10.2-cudnn7
• cortexlabs/python-predictor-gpu-slim:master-cuda10.2-cudnn8
• cortexlabs/python-predictor-gpu-slim:master-cuda11.0-cudnn8
• cortexlabs/python-predictor-gpu-slim:master-cuda11.1-cudnn8

Motivation

Some libraries require combinations that are not currently provided. For example, the latest version of onnx runtime requires CUDA 10.2 and cuDNN 8.