Bor v2.9.0 And Erigon v3.7.2 Activate Valencia Hardfork

Bor v2.9.0 and Erigon v3.7.2 released for Polygon Mainnet and Amoy. Valencia hardfork activated on both networks. Amoy at block 40,776,000, Mainnet at 89,531,000. Public builds identical to private -priv versions. Operators on pre-Valencia builds must upgrade immediately. Erigon adds state-sync window fix.