add nodejs installer script

docker/scripts/install-nodejs.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+
+apt update
+apt install -y 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
+
+NODE_MAJOR=18
+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
+
+apt update
+apt install -y nodejs