SANA, Yemen — The dusty streets of this ancient capital were jammed with cars as Yemenis ran last-minute errands before the start of Id al-Fitr, the joyous holiday that began Tuesday with the end of the holy month of Ramadan. Men. A bomb attack targeting Shiite worshippers at a mosque in Yemen’s capital on Thursday killed at least 25 people and wounded dozens more during prayers for the Muslim holiday…