UK Prime Minister Boris Johnson is to lobby Saudi Arabia and the UAE to pump more oil to calm turbulent markets as he meets the Gulf states’ leadership on Wednesday. Johnson arrived in Abu Dhabi for talks with Crown Prince Mohammed bin Zayed and was due to fly to Riyadh later as the West seeks to end its dependency on Russian oil following the invasion of Ukraine. His visit, as oil prices seesaw in extreme volatility, coincides with fresh condemnation of the UAE and Saudi Arabia’s human rights record after 81 men were put to death in a mass execution in the kingdom on Saturday. The UAE has als…