A “ghost ship” drifting without a crew for more than a year washed ashore on Ireland’s south coast in high seas caused by Storm Dennis, the Republic’s coastguard said.The abandoned 77-metre (250 feet) cargo ship MV Alta ran aground on rocks outside the village of Ballycotton near Cork, Ireland’s second city, bringing an end to her months-long voyage.The Alta’s odyssey began in September 2018 when she became disabled in the mid-Atlantic en route from Greece to Haiti.Remains of 7 people found on…