Firefox 144 makes RTCDataChannel transferable (#27894)

FF144 RTCDataChannel is Transferrable

Author: hamishwillee

api/RTCDataChannel.json

@@ -937,8 +937,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1209163"
+              "version_added": "144"
             },
             "firefox_android": "mirror",
             "oculus": "mirror",