Isolation and Identification of Lactic Acid Bacteria from a Fermented Beverage Made from a Mixture of Ginger, Lemon, and Kelulut Honey and Evaluation of Its Antibacterial Potential against Streptococcus pneumoniae: ISOLASI DAN IDENTIFIKASI BAKTERI ASAM LAKTAT DARI MINUMAN FERMENTASI BERBAHAN CAMPURAN JAHE, LEMON, DAN MADU KELULUT SERTA UJI POTENSI ANTIBAKTERI TERHADAP Streptococcus pneumoniae