Update NNUE architecture to SFNNv12 and net nn-7e1657811c6d.nnue
This net is trained with https://github.com/sscg13/nettest/blob/no-king-attacker/threats.yaml.
Passed non-regression STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 92640 W: 24371 L: 24209 D: 44060
Ptnml(0-2): 389, 11047, 23322, 11137, 425
https://tests.stockfishchess.org/tests/view/6986345fa259e26d2c32e9c5
Passed non-regression LTC:
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 198636 W: 50960 L: 50919 D: 96757
Ptnml(0-2): 176, 22218, 54511, 22215, 198
https://tests.stockfishchess.org/tests/view/6987ee29b0f3ca5200aafa51
closes https://github.com/official-stockfish/Stockfish/pull/6609
bench: 2465828