Update default net to nn-63376713ba63.nnue.

Update default net to nn-63376713ba63.nnue.

same data set as previous trained nets, tuned the wdl model slightly for training.
https://github.com/vondele/nnue-pytorch/tree/wdlTweak1

passed STC:
https://tests.stockfishchess.org/tests/view/61abe9e456fcf33bce7d2834
LLR: 2.93 (-2.94,2.94) <0.00,2.50>
Total: 31720 W: 8385 L: 8119 D: 15216
Ptnml(0-2): 117, 3534, 8273, 3838, 98

passed LTC:
https://tests.stockfishchess.org/tests/view/61ac293756fcf33bce7d36cf
LLR: 2.96 (-2.94,2.94) <0.50,3.00>
Total: 136136 W: 35255 L: 34741 D: 66140
Ptnml(0-2): 114, 14217, 38894, 14727, 116

closes https://github.com/official-stockfish/Stockfish/pull/3836

Bench: 4667742