Fix deprecation in `WebSocketClient`
This patch was authored by @axtonpitt and released by @0xTim.
Fix TLSConfiguration.forClient()
deprecation warning
warning: 'forClient(cipherSuites:minimumTLSVersion:maximumTLSVersion:certificateVerification:trustRoots:certificateChain:privateKey:applicationProtocols:shutdownTimeout:keyLogCallback:)' is deprecated: renamed to 'makeClientConfiguration()'