The U.S. Middle East envoy called the foreign ministers of Saudi Arabia, UAE, Qatar and Iraq to ask them to deliver a message to Iran urging it to lower tensions with Israel following an Israeli airstrike on Iran’s embassy annex in Syria, a source with knowledge of the situation said. White House Middle East czar Brett McGurk asked the officials to contact the Iranian foreign minister to convey a message that Iran should de-escalate with Israel, which they did, said the source, who spoke on condition of anonymity. Iran’s foreign ministry said on Wednesday the foreign ministers of Saudi Arabia,…