RPM build fix (reverted CI changes which will need to be un-reverted or made conditional) and vendor Rust dependencies to make builds much faster in any CI system.

zeroidc/vendor/web-sys/webidls/enabled/MessagePort.webidl

@@ -0,0 +1,22 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * For more information on this interface, please see
+ * http://www.whatwg.org/specs/web-apps/current-work/#channel-messaging
+ */
+
+[Exposed=(Window,Worker,AudioWorklet,System)]
+interface MessagePort : EventTarget {
+  [Throws]
+  undefined postMessage(any message, optional sequence<object> transferable = []);
+
+  undefined start();
+  undefined close();
+
+  // event handlers
+  attribute EventHandler onmessage;
+  attribute EventHandler onmessageerror;
+};
+// MessagePort includes Transferable;