--access-token flag ignored when also providing --context flag

**Describe the Issue:**

I am attempting to create an auth context with a custom name, with a token from my env vars.

If I use…

```shell
$ doctl auth init --access-token "${DIGITALOCEAN_TOKEN}"
```

… it works just fine, but if I use…

```shell
$ doctl auth init --access-token "${DIGITALOCEAN_TOKEN}" --context=another
```

if prompts for my access token.

**Environment:**
- doctl version: doctl version 1.97.1-release
- OS: MacOS 13.2.1 (22D68)
- Installation method: Homebrew

**Additional Details:**

No trace to provide as it's not making any requests