ci: Update base.Dockerfile

Author: NGPixel

docker/base.Dockerfile

@@ -2,14 +2,18 @@ FROM python:3.9-bullseye
 LABEL maintainer="IETF Tools Team <tools-discuss@ietf.org>"
 
 ENV DEBIAN_FRONTEND=noninteractive
+ENV NODE_MAJOR=16
 
 # Update system packages
 RUN apt-get update \
     && apt-get -qy upgrade \
     && apt-get -y install --no-install-recommends apt-utils dialog 2>&1
 
 # Add Node.js Source
-RUN curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
+RUN apt-get install -y --no-install-recommends ca-certificates curl gnupg \
+    && mkdir -p /etc/apt/keyrings\
+    && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+RUN echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
 
 # Add Docker Source
 RUN curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg