Fix for #9: docker build error (#11)

ModuleNotFoundError: No module named 'skbuild'

Author: rvorias

Dockerfile

@@ -4,6 +4,7 @@ RUN apt-get update -y
 RUN apt-get install python3 python3-pip unzip wget -y
 COPY . /app
 WORKDIR app/
+RUN pip3 install --upgrade pip
 RUN pip3 install -r requirements.txt
 RUN pip3 install jupyterlab notebook
-RUN pip3 install git+https://github.com/mihaidusmanu/pycolmap
+RUN pip3 install git+https://github.com/mihaidusmanu/pycolmap