fix(react-native): restrict the list of options for the WebSocket object

Only 'headers' and 'localAddress' options are supported by the
WebSocket implementation in React Native.

The following message was printed to the console:

> Unrecognized WebSocket connection option(s) `agent`, `perMessageDeflate`, `pfx`, `key`, `passphrase`, `cert`, `ca`, `ciphers`, `rejectUnauthorized`. Did you mean to put these under `headers`?

Reference: https://reactnative.dev/docs/network.html#websocket-support

Backported from master: 2f5c948

lib/transports/websocket.js

@@ -92,19 +92,23 @@ WS.prototype.doOpen = function () {
 
   var uri = this.uri();
   var protocols = this.protocols;
-  var opts = {
-    agent: this.agent,
-    perMessageDeflate: this.perMessageDeflate
-  };
 
-  // SSL options for Node.js client
-  opts.pfx = this.pfx;
-  opts.key = this.key;
-  opts.passphrase = this.passphrase;
-  opts.cert = this.cert;
-  opts.ca = this.ca;
-  opts.ciphers = this.ciphers;
-  opts.rejectUnauthorized = this.rejectUnauthorized;
+  var opts = {};
+
+  if (!this.isReactNative) {
+    opts.agent = this.agent;
+    opts.perMessageDeflate = this.perMessageDeflate;
+
+    // SSL options for Node.js client
+    opts.pfx = this.pfx;
+    opts.key = this.key;
+    opts.passphrase = this.passphrase;
+    opts.cert = this.cert;
+    opts.ca = this.ca;
+    opts.ciphers = this.ciphers;
+    opts.rejectUnauthorized = this.rejectUnauthorized;
+  }
+
   if (this.extraHeaders) {
     opts.headers = this.extraHeaders;
   }