update node installation in Earthfile

Earthfile

@@ -49,6 +49,11 @@ devcontainer-base:
         # Clean up
         && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/* /tmp/library-scripts/
 
+    # https://github.com/nodesource/distributions#installation-instructions
+    RUN mkdir -p /etc/apt/keyrings && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+    ARG NODE_MAJOR=16
+    RUN echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
+
     # Configure apt and install packages
     RUN apt-get update \
         && apt-get install -y --no-install-recommends apt-utils dialog 2>&1 \
@@ -70,8 +75,7 @@ devcontainer-base:
             php-mbstring \
             php-mysql \
             php-sqlite3 \
-        && curl -sL https://deb.nodesource.com/setup_16.x | bash - \
-        && apt-get install -y nodejs=16.* \
+            nodejs="$NODE_MAJOR.*" \
         #
         # Clean up
         && apt-get autoremove -y \