Upgrade pip

src/freedombone

@@ -9188,6 +9188,8 @@ function install_search_engine {
     apt-get -y install python-pip libyaml-dev python-werkzeug python-babel
     apt-get -y install git build-essential libxslt-dev python-dev python-virtualenv python-pybabel zlib1g-dev uwsgi uwsgi-plugin-python libapache2-mod-uwsgi
 
+    pip install --upgrade pip
+
     pip install certifi
     if [ ! "$?" = "0" ]; then
         exit 737692