Add sensor that detects MySkoda API problems

[WebSpider]

Is your feature request related to a problem? Please describe.
Problems with the MySkoda API leave this integration semi-functional only. When this happens, I don't know what's causing the issues.

Describe the solution you'd like
Know when there are issues with the MySkoda API so I understand what's going on

Describe alternatives you've considered
So far I have used Discord to see if "it's just me, or the world as well".

Additional context
There are some API's that detect if a service is having issues. We may use those.

[ChristophCaina]

the myskoda component (not the integration itself) should probably check for the server response...
for example, the server could return an 401, 500, or whatever status.

The integration could check against this.
It might be, that the concept for this integration should be similar as for others (like HomeConnectAlt)

where you have an information for the Platform
And then, each individual device.

The sensor could probably be a binary sensor with device class "connectivity" - and should report disconnect whenever the server is not sending a 200 response back (?)

[schnu240]

I would like to see the feature as well. I encounter every 2-3 weeks that something is not working but it would be nice if the integration inform about it.