Fix issue ThoughtfulDev#163 docker troubles

dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:22.04
 
 RUN apt-get clean && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y locales
 RUN locale-gen en_US.UTF-8
@@ -10,14 +10,14 @@ ENV PYTHONIOENCODING=utf-8
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get upgrade -y
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y git curl software-properties-common unzip
-RUN apt-get update && add-apt-repository -y ppa:deadsnakes/ppa && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y python3.6 python3.6-dev
-RUN curl https://bootstrap.pypa.io/get-pip.py | python3.6
+RUN apt-get update && add-apt-repository -y ppa:deadsnakes/ppa && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y python3.8 python3.8-dev python3.8-distutils
+RUN curl https://bootstrap.pypa.io/get-pip.py | python3.8
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y libgtk-3-dev libboost-all-dev build-essential cmake libffi-dev
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y firefox
 RUN git clone https://github.com/ThoughtfulDev/EagleEye
 WORKDIR EagleEye
-RUN pip3.6 install -r requirements.txt
-RUN pip3.6 install --upgrade beautifulsoup4 html5lib spry
+RUN pip3.8 install -r requirements.txt
+RUN pip3.8 install --upgrade beautifulsoup4 html5lib spry
 ADD https://github.com/mozilla/geckodriver/releases/download/v0.27.0/geckodriver-v0.27.0-linux64.tar.gz /EagleEye/geckodriver.tar.gz
 RUN tar -xvf geckodriver.tar.gz
 RUN mv geckodriver /usr/bin/geckodriver