sparrowwallet/frigate: Frigate Electrum Server Adopted UltrafastSecp256k1

The Frigate Electrum server, integrated with Sparrow Wallet, has adopted UltrafastSecp256k1, a significant technical enhancement. This upgrade improves the speed and efficiency of the core cryptographic operations essential for Bitcoin transaction processing and wallet interactions. It directly benefits users reliant on Sparrow Wallet and the broader Bitcoin infrastructure utilizing Electrum servers.