Cannot Find KDF in SASLAuthentication+SCRAM-SHA256

### Describe the issue Hi. Following to change on 14 Oct the private func Hi doesn't compile because it cannot find KDF. ### Vapor version 4.117.0 ### Operating system and version MacOS 26.0.01 ### Swift version SPM - 6.0 ### Steps to reproduce private func Hi(string: [UInt8], salt: [UInt8], iterations: UInt32) throws -> SymmetricKey { try KDF.Insecure.PBKDF2.deriveKey( from: string, salt: salt, using: .sha256, outputByteCount: 32, unsafeUncheckedRounds: Int(iterations) ) } ### Outcome Unable to build project ### Additional notes