Bump opencv-python from 4.2.0.32 to 4.8.1.78 in /Oneflow-Python/FastNeuralStyle#10

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dependabot/pip/Oneflow-Python/FastNeuralStyle/opencv-python-4.8.1.78Ldpe2G/DeepLearningForFun:dependabot/pip/Oneflow-Python/FastNeuralStyle/opencv-python-4.8.1.78Copy head branch name to clipboard