Validate storage names before passing them to the storage client

The Apify platform has these limitations:

```
apify_client.errors.ApifyApiError: Invalid value provided in store: name can only contain letters 'a' through 'z', the digits '0' through '9', and the hyphen ('-') but only in the middle of the string (e.g. 'my-value-1')
```

We should validate and enforce this rule on the storage level - before passing it to the storage clients.