test: use common.PORT instead of hardcoded number

In sequential/test-https-connect-localport, replace 34567 with
common.PORT.

PR-URL: #26881
Fixes: #26862
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>

Author: Trott

test/sequential/test-https-connect-localport.js

@@ -22,10 +22,10 @@ const assert = require('assert');
       pathname: '/',
       port,
       family: 4,
-      localPort: 34567,
+      localPort: common.PORT,
       rejectUnauthorized: false
     }, common.mustCall(() => {
-      assert.strictEqual(req.socket.localPort, 34567);
+      assert.strictEqual(req.socket.localPort, common.PORT);
       assert.strictEqual(req.socket.remotePort, port);
     }));
   }));