add deprecated initializer to RealtimeClient for compatibility

Author: foodisbeast

Sources/Realtime/RealtimeClient.swift

@@ -192,6 +192,21 @@ public class RealtimeClient: TransportDelegate {
       vsn: vsn
     )
   }
+  
+  @available(*, deprecated, renamed: "init(_:paramsClosure:vsn:)")
+  public convenience init(
+    endPoint: String,
+    paramsClosure: PayloadClosure?,
+    vsn: String = Defaults.vsn
+  ) {
+    self.init(
+      endPoint: endPoint,
+      transport: { url in URLSessionTransport(url: url) },
+      paramsClosure: paramsClosure,
+      vsn: vsn
+    )
+  }
+
 
   public init(
     endPoint: String,