`node`: use `--use-system-ca` instead of `--use-openssl-ca`

`--use-system-ca` is the replacement for `--use-openssl-ca` and we should use that for newer node versions. the certificates are cached, so better perf.

```
Added in:v23.9.0, v22.15.0
```

- https://nodejs.org/docs/latest-v25.x/api/cli.html#use-system-ca