By Noemie Olive and Gus Trompiz BEAUVAIS, France (Reuters) -Farmers blocked highways across France on Monday and said they aimed to “besiege” Paris, in a bid to press the government to do more to help them weather inflation, compete with cheap imports and make a living. The government, wary of seeing the protests escalate and with an eye on European Parliament elections in June, has already dropped plans to gradually reduce subsidies on agricultural diesel and promised to ease environmental regulations. France also said it would push its European Union peers to agree to ease regulations on fal…