Switch node plugin to com.github.node-gradle.node
Switch node plugin to com.github.node-gradle.node

The previous plugin still isn't Gradle v6 compatible, and this one is much better maintained.
Also use the new `plugins` closure instead of `buildscript`.

NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet