Update node to 16.13.1

useful for using stream.promises

scripts/installer.sh

@@ -115,13 +115,13 @@ if ! which sshfs; then
 fi
 
 log "updating node"
-readonly node_version=14.17.6
+readonly node_version=16.13.1
 if [[ "$(node --version)" != "v${node_version}" ]]; then
     mkdir -p /usr/local/node-${node_version}
     $curl -sL https://nodejs.org/dist/v${node_version}/node-v${node_version}-linux-x64.tar.gz | tar zxvf - --strip-components=1 -C /usr/local/node-${node_version}
     ln -sf /usr/local/node-${node_version}/bin/node /usr/bin/node
     ln -sf /usr/local/node-${node_version}/bin/npm /usr/bin/npm
-    rm -rf /usr/local/node-14.15.4
+    rm -rf /usr/local/node-14.17.6
 fi
 
 # this is here (and not in updater.js) because rebuild requires the above node