Can't run `aspire agent init` non interactively

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Describe the bug

If you try to run `aspire agent init --non-interactive`, you get an error telling you to use `Use the --non-interactive flag or ensure the CLI is running in an interactive terminal.`. I DID JUST THAT!

```
>aspire agent init --non-interactive
❌ An unexpected error occurred: Interactive input is not supported in this environment. Use the --non-interactive flag or ensure the CLI is running in an interactive terminal.
```

For context, I am trying to build a skill file to help with some of our aspire 13.2 upgrades, and as part of that I wanted to tell the agent to create the skill file. With without a non-interactive way to do so, I will have to fudge it through some other way.

### Expected Behavior

One of the following
1. `aspire agent init --non-interactive` should run non interactively
2. `--non-interactive` shouldn't show up on `aspire agent init --help`
3. The error message should be more specific saying that `aspire agent init is not supported interactively`

### Steps To Reproduce

```bash
aspire agent init --non-interactive
```

### Exceptions (if any)

_No response_

### Aspire doctor output

_No response_

### Anything else?

_No response_