Brittney Griner is “terrified” that she will be imprisoned in Russia forever. The 31-year-old basketball star was arrested on suspicion of drug smuggling in Russia just days before the country launched the ongoing invasion on Ukraine and penned an open letter to President Joe Biden begging him to “not forget about her” during the 4th July celebrations. The letter, obtained by E! News read: “AsI sit here in a Russian prison, alone with my thoughts and without the protection of my wife, family, friends, Olympic jersey, or any accomplishments, I’m terrified I might be here forever. On the 4th of …