Revert "Update packages to fix CG alerts (#20922)" (#20927)

This reverts commit 97c070be13.

extensions/notebook/package.json

@@ -780,7 +780,7 @@
     "@types/fs-extra": "^5.0.0",
     "@types/glob": "^7.1.1",
     "@types/js-yaml": "^3.12.1",
-    "@types/mocha": "^9.1.1",
+    "@types/mocha": "^7.0.2",
     "@types/node": "^12.11.7",
     "@types/request": "^2.48.1",
     "@types/rimraf": "^2.0.2",
@@ -788,7 +788,7 @@
     "@types/tar": "^4.0.3",
     "@types/uuid": "^3.4.5",
     "assert": "^1.4.1",
-    "mocha": "^9.2.2",
+    "mocha": "^7.1.1",
     "nock": "^13.0.2",
     "should": "^13.2.3",
     "sinon": "^9.0.2",