Change console.log to console.error for network error

[nphmuller]

console.error also logs the stack trace and the error cause. This will provide a lot more information to what went wrong.

Before this change:
[Network error]: TypeError: fetch failed

After this change:

[Network error]:  TypeError: fetch failed
    at Object.fetch (node:internal/deps/undici/undici:11372:11)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
  cause: Error: getaddrinfo ENOTFOUND xxx.example.com
      at GetAddrInfoReqWrap.onlookupall [as oncomplete] (node:dns:118:26)
      at GetAddrInfoReqWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
    errno: -3008,
    code: 'ENOTFOUND',
    syscall: 'getaddrinfo',
    hostname: 'xxx.example.com'
  }
}

As you can see, after this change it's very clear that the endpoint is not available.

[apollo-cla]

@nphmuller: Thank you for submitting a pull request! Before we can merge it, you'll need to sign the Apollo Contributor License Agreement here: https://contribute.apollographql.com/

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[jerelmiller]

This change makes sense to me! Thanks so much for the improvement!