Revert "[core-client-rest] downgrade dependency @azure/abort-controller to v1 (Azure#27948)"

This reverts commit badad46.

Author: jeremymeng

sdk/core/core-client-rest/package.json

@@ -59,7 +59,7 @@
     "@azure/core-auth": "^1.3.0",
     "@azure/core-rest-pipeline": "^1.5.0",
     "@azure/core-util": "^1.0.0",
-    "@azure/abort-controller": "^1.1.0",
+    "@azure/abort-controller": "^2.0.0",
     "@azure/core-tracing": "^1.0.1",
     "tslib": "^2.2.0"
   },