feat(ffi): production connect_default* + data_dir connect arg (V2-637, V2-643) - #220

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, arduino/setup-protoc@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/