Ensure compatibility for devs with the latest NodeJS versions

[christian-kreuzberger-dtx]

We seem to run into problems with NodeJS v10 and NodeJS v17.4

NodeJS v17.4 gives this error when trying to compile:

error TS2571: Object is of type 'unknown'.

For now, NodeJS v14 seems to work fine though.

Definition of Done

• [ ] Dev Docs updated to use a newer version of NodeJS
• [ ] Code updated to work with a newer version of NodeJS