By Zach Koons The WNBA star will remain in Russian jail for at least two and a half more weeks. A Russian court ruled to extend the detention of WNBA star Brittney Griner once again. Griner, who has been detained in Russia since February, will remain in custody until at least July 2, according to Russian state media outlet TASS. Griner, a seven-time All-Star with the Mercury and a two-time Olympic gold medalist with Team USA, was arrested Feb. 17 at Sheremetyevo International Airport, where Russian officials said they discovered vape cartridges containing hashish oil in her luggage. According …