ANKARA – The Turkish lira firmed against the dollar on Monday a day after the finance minister, who is also the son-in-law to President Recep Tayyip Erdogan, announced his resignation on social media.The lira was up by 2.6%, trading at 8.29 against the dollar, even though it was not immediately clear whether Erdogan had accepted Berat Albayrak’s resignation and whether a new finance minister would be appointed.Albayrak, 42, announced on Instagram late on Sunday that he was stepping down from his post for health reasons and would spend more time with his family.His resignation followed the dismissal over the weekend of central bank chief Murat Uysal and his replacement by former Finance Minister Naci Agbal.Albayrak, who has four children.