By Renju Jose SYDNEY (Reuters) – Australia on Monday said it would tighten visa rules for international students and low-skilled workers that could halve its migrant intake over the next two years as the government looks to overhaul what it said was a “broken” migration system. The decision comes after net immigration was expected to have peaked at a record 510,000 in 2022-23. Official data showed it was forecast to fall to about a quarter of a million in 2024-25 and 2025-26, roughly in line with pre-COVID levels. “We’ve worked around the clock to strike the best balance in Australia’s migrati…