move webrtc etc. events from groupCall to matrix.call span (#1080)

* add new linked span for connection stats

* move stats span under call span and add user attribute

* Update matrix-js-sdk

package.json

@@ -53,7 +53,7 @@
     "i18next-browser-languagedetector": "^6.1.8",
     "i18next-http-backend": "^1.4.4",
     "lodash": "^4.17.21",
-    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#a7b1dcaf9514b2e424a387e266c6f383a5909927",
+    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#e70a1a1effe59e6754f9a10cc2df8eef81638c7d",
     "matrix-widget-api": "^1.3.1",
     "mermaid": "^8.13.8",
     "normalize.css": "^8.0.1",