Update Dockerfile

Dockerfile

@@ -19,6 +19,7 @@ RUN \
 
 RUN \
     set -eux && \
+    pip3 install --upgrade pip && \
     pip3 install --upgrade autoenv autopep8 cmake-format conan conan_package_tools setuptools && \
     pip3 install --upgrade cppclean flawfinder lizard pygments && \
     pip3 install --upgrade dlib ipython jupyter matplotlib nose numpy pandas pymc3 scikit-learn scipy seaborn sympy && \