TALLINN, Estonia—Estonia’s two biggest political parties say they have clinched a deal to form a new government to be led by a female prime minister for the first time in the Baltic country’s history, replacing the previous Cabinet that collapsed into a corruption scandal earlier this month. The party councils of the the opposition, center-right Reform Party and the ruling. left-leaning Center Party were expected on Sunday to vote in favor of joining a Cabinet headed by Reform’s prime minister-designate and chairwoman Kaja Kallas. Both parties are set to have seven ministerial portfolios in the 14-member government, which would muster a majority at the 101-seat Riigikogu Parliament. A joint statement said the Reform Party and the Center Party “will form a government that will continue to effectively resolve the COVID-19 crisis, keep Estonia forward-looking and develop all areas and regions of our country.” Earlier this month, President Kersti Kaljulaid, who …