ATHENS (Reuters) – A long-delayed gas pipeline between Greece and Bulgaria aimed at helping Sofia cut reliance on Russian gas will be ready by the end of June and start commercial operations in September, Bulgaria’s Prime Minister said on Monday. Bulgaria now meets almost all its gas needs with imports from Russia’s Gazprom and the new gas link is crucial to its weaning off Russian gas, which is also a key priority in Europe’s reviewed energy policy following Russia’s invasion of Ukraine. The 220-million-euros Interconnector Greece-Bulgaria (IGB) was planned to have been ready by the end of 20…