Prevent Node.js 18 provided by Debian 12 from taking precedence over the Node.js 16 package provided by NodeSource

[jnm]

The Debian-provided nodejs package also does not include npm, although it's available as a separate Debian-provided package. As a consequence, this error may appear prior to including the change in this PR:

/bin/sh: 1: npm: not found
The command '/bin/sh -c rm -rf ${KPI_NODE_PATH} &&     npm install -g npm@8.5.5 &&     npm install -g check-dependencies &&     rm -rf "${KPI_SRC_DIR}/jsapp/fonts" &&     rm -rf "${KPI_SRC_DIR}/jsapp/compiled" &&     npm install --quiet &&     npm cache clean --force' returned a non-zero code: 127
ERROR: Service 'kpi' failed to build : Build failed

Description

The python:3.10 Docker base image has moved from Debian 11 to Debian 12, necessitating a workaround to continue using Node.js 16.