Update to Node v22

[mdrayer]

Node v20 is currently in "maintenance", meaning that only critical bug and security updates are being made to it. It will reach end of life on April 30, 2026. We should look to update to v22 to stay up to date.

https://github.com/nodejs/Release?tab=readme-ov-file#nodejs-release-working-group

[mdrayer]

The docs say that:

LTS release status is “long-term support”, which typically guarantees that critical bugs will be fixed for a total of 30 months. Production applications should only use Active LTS or Maintenance LTS releases.

Node v24 is not yet in Active LTS nor Maintenance LTS, so we should stick with v22 for now.