Lower PIATunnel requirement

Partially reverts 4f268512

PIALibrary.podspec

@@ -38,7 +38,7 @@ Pod::Spec.new do |s|
         p.frameworks            = "NetworkExtension"
         p.pod_target_xcconfig   = { "APPLICATION_EXTENSION_API_ONLY" => "YES" }
 
-        p.dependency "PIATunnel", "~> 1.1.2"
+        p.dependency "PIATunnel", "~> 1.1"
         p.dependency "PIALibrary/Library"
     end