Recommended Node version for Signalk is v22

[msallin]

As of signalk-server 2.14.0, Node.js 20 is the minimum supported version, with 22 being recommended.

https://github.com/SignalK/signalk-server/wiki/Installing-and-Updating-Node.js

Additionally, according to Discord, Signalk v3 will require Node.js v22.

[sailoog]

#4