Update Podspec (#587)

Fixes: #566

Author: hiroshihorie

LiveKitClient.podspec

@@ -8,13 +8,15 @@ Pod::Spec.new do |spec|
 
   spec.ios.deployment_target = "13.0"
   spec.osx.deployment_target = "10.15"
+  spec.tvos.deployment_target = "17.0"
+  spec.visionos.deployment_target = "1.0"
 
   spec.swift_versions = ["5.7"]
   spec.source = {:git => "https://github.com/livekit/client-sdk-swift.git", :tag => "2.1.1"}
 
   spec.source_files = "Sources/**/*"
 
-  spec.dependency("LiveKitWebRTC", "= 125.6422.11")
+  spec.dependency("LiveKitWebRTC", "= 125.6422.18")
   spec.dependency("SwiftProtobuf")
   spec.dependency("Logging")