Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1088,3 +1088,5 @@
 {"step": 21760, "tokens": 11408506880, "loss": 2.745311737060547, "tokens_per_second": 980719.1997586043, "lr": 0.0015, "gradient_norm": 0.16841423511505127, "benchmark": false}
 {"step": 21780, "tokens": 11418992640, "loss": 2.7404130935668944, "tokens_per_second": 979405.6731532753, "lr": 0.0015, "gradient_norm": 0.158935546875, "benchmark": false}
 {"step": 21800, "tokens": 11429478400, "loss": 2.743579864501953, "tokens_per_second": 855127.0073245649, "lr": 0.0015, "gradient_norm": 0.17852526903152466, "benchmark": false}
+{"step": 21820, "tokens": 11439964160, "loss": 2.7386568069458006, "tokens_per_second": 978846.331389176, "lr": 0.0015, "gradient_norm": 0.15770407021045685, "benchmark": false}
+{"step": 21840, "tokens": 11450449920, "loss": 2.75250129699707, "tokens_per_second": 984080.8761217202, "lr": 0.0015, "gradient_norm": 0.15558847784996033, "benchmark": false}