Further isolate #

.github/workflows/build-test.yml

@@ -55,30 +55,5 @@ jobs:
       run: |
         apt-get update -q
         apt-get install -y software-properties-common
-        apt-get --allow-unauthenticated update -q
-        apt-get --allow-unauthenticated install -y curl g++ git make patch zlib1g-dev libssl-dev bsdmainutils dnsutils unzip
-        # ubuntu-14.04 ca-certificates are out of date
-        git config --global http.sslVerify false
-        # build and install openssl
-        curl -OsSk https://www.openssl.org/source/openssl-1.1.1v.tar.gz
-        tar xzf openssl-1.1.1v.tar.gz
-        cd openssl-1.1.1v
-        ./config --prefix=/usr/local/custom-openssl --libdir=lib --openssldir=/etc/ssl
-        make -j1 depend
-        make -j8
-        make install_sw
-        cd ..
-        # install ffi.h, which is required for python build
-        apt install libffi-dev
-        # build and install python
-        curl -sSk https://www.python.org/ftp/python/3.11.5/Python-3.11.5.tar.xz | tar -xJ
-        cd Python-3.11.5
-        ./configure -C --with-openssl=/usr/local/custom-openssl --with-openssl-rpath=auto
-        make -j8
-        make install
-        update-alternatives --install /usr/bin/python3 python3 /usr/local/bin/python3.11 3
-        ln -s /usr/local/bin/python3.11 /usr/bin/python
-        curl -sS https://bootstrap.pypa.io/pip/3.6/get-pip.py | python
-        curl -sS https://nodejs.org/dist/v12.16.2/node-v12.16.2-linux-x64.tar.xz | tar -xJ
-        echo "`pwd`/node-v12.16.2-linux-x64/bin" >> $GITHUB_PATH
+