Injection of GitHub token as query parameter is deprecated

According to the 400 error message I get,

```
{
  "message": "Must specify access token via Authorization header. https://developer.github.com/changes/2020-02-10-deprecating-auth-through-query-param",
  "documentation_url": "https://docs.github.com/v3/#oauth2-token-sent-in-a-header"
}
```

I guess all queries should be updated accordingly