fix: restore the cherry-picking of the WebSocket options

The previous commit ([1]) makes the Engine.IO tests with Node.js SSL
options fail.

[1]: 177b95f

lib/transports/websocket.js

@@ -54,7 +54,21 @@ class WS extends Transport {
     const protocols = this.opts.protocols;
 
     // React Native only supports the 'headers' option, and will print a warning if anything else is passed
-    const opts = isReactNative ? {} : this.opts;
+    const opts = isReactNative
+      ? {}
+      : pick(
+          this.opts,
+          "agent",
+          "perMessageDeflate",
+          "pfx",
+          "key",
+          "passphrase",
+          "cert",
+          "ca",
+          "ciphers",
+          "rejectUnauthorized",
+          "localAddress"
+        );
 
     if (this.opts.extraHeaders) {
       opts.headers = this.opts.extraHeaders;