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/RTCDTMFSender.webidl

@@ -0,0 +1,17 @@
+/* -*- 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/.
+ *
+ * The origin of this IDL file is
+ * https://www.w3.org/TR/webrtc/#rtcdtmfsender
+ */
+
+[JSImplementation="@mozilla.org/dom/rtcdtmfsender;1"]
+interface RTCDTMFSender : EventTarget {
+    undefined insertDTMF(DOMString tones,
+                    optional unsigned long duration = 100,
+                    optional unsigned long interToneGap = 70);
+             attribute EventHandler  ontonechange;
+    readonly attribute DOMString     toneBuffer;
+};