CI ignores node engine requirement

[bbenligiray]

See bded9d4

[Ashar2shahid]

this also is an issue with the default yarn command in the docs, using node 20 cause require node 18 error and using node 18 causes require node 20 error due to @api3/contracts

[bbenligiray]

Temporarily changed the instructions 33c4183

[bbenligiray]

@api3/airnode-node will receive a new release that will resolve this down the line

[dcroote]

Airnode v0.15.0 is released and I'm working on the upstream fixes starting with api3dao/signed-api#417

[dcroote]

I've created #242, but I don't have access to the repo so had to do it in a fork and can't request a review or link the PR to close this issue

[bbenligiray]

I'm not sure why that was, I added the team to the repo

[dcroote]

I'm not sure why that was, I added the team to the repo

Works- thanks!