BRUSSELS (Reuters) -Short-term accommodation services company Airbnb must provide information in rental contracts to tax authorities and withhold tax under a national regime, the European Union’s top court ruled on Thursday. The ruling comes in response to a challenge from Airbnb to an Italian law from 2017 requiring Airbnb and other short-term rental sites to forward information from their rental contracts to tax authorities and to withhold 21% from the rental income and pay it to tax authorities. The company challenged the law in an Italian court, arguing that taxation and other requirements…