Russia said Tuesday that it will hold an American soldier who was detained in the Far East over the weekend in custody until early July on theft charges. The U.S. Army said the soldier, identified by a Russian court in the city of Vladivostok as Gordon Black, had been detained on criminal charges but withheld details citing the sensitivity of the case. The detention of Black adds to the number of Americans held in Russia at a time of deep tensions with Washington over Moscow’s full-scale invasion of Ukraine. A Russian court spokeswoman said Black, who was detained on May 2, would be held until…