hwe-support-status shows incorrect support dates

[Nikos Mavrogiannopoulos]

In a 20.04 system with subscription attached hwe-support-status shows:

```
$ hwe-support-status --verbose
You are not running a system with a Hardware Enablement Stack. Your system is supported until April 2025.
```

This is incorrect as the subscription entitles to support from canonical until 2030 (support is also a very difficult term to use as it means different things to different people). Nevertheless, I do not think that this tool is the right to print any support entitlements. The message should be instead:

```
$ hwe-support-status --verbose
You are not running a system with a Hardware Enablement Stack.
```

For support information we provide the `ua` tool instead.