Improve transposition table remplacement strategy

Improve transposition table remplacement strategy

Increase chance that PV node replaces old entry in transposition table.

STC:
LLR: 2.93 (-2.94,2.94) <0.00,2.50>
Total: 46744 W: 12108 L: 11816 D: 22820
Ptnml(0-2): 156, 5221, 12344, 5477, 174
https://tests.stockfishchess.org/tests/view/61ae068356fcf33bce7d99d0

LTC:
LLR: 2.94 (-2.94,2.94) <0.50,3.00>
Total: 88464 W: 22912 L: 22513 D: 43039
Ptnml(0-2): 84, 9133, 25393, 9544, 78
https://tests.stockfishchess.org/tests/view/61ae973656fcf33bce7db3e1

closes https://github.com/official-stockfish/Stockfish/pull/3839

Bench: 5292488