modify dockerfile

scripts/docker/mindspore-gpu/runtime/Dockerfile

@@ -84,3 +84,6 @@ RUN cd /tmp \
     && make install -j4 \
     && rm -rf /tmp/openmpi-4.0.3 \
     && rm -f /tmp/openmpi-4.0.3.tar.gz
+
+# Install frequently used python packages
+RUN pip install --no-cache-dir decorator pandas sklearn pyyaml