Add checkpoint 22

This checkpoint model at epoch 22 gave the best evaluation metrics score

checkpoints/checkpoint_epoch_022_20250808_190318.pt

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cbc01c00702ef2611782e674d86f86e0d080f3759ccf269efff16096f91c95c8
+size 84569969