test(replay): Fix replay test tsconfig

a) The comment is not allowed in a JSON file
b) The path is not correct (anymore)

Author: mydea

packages/replay/test/unit/tsconfig.json

@@ -1,8 +1,5 @@
-// TODO Once https://github.com/microsoft/TypeScript/issues/33094 is done (if it ever is), this file can disappear, as
-// it's purely a placeholder to satisfy VSCode.
-
 {
-  "extends": "../tsconfig.test.json",
+  "extends": "../../../tsconfig.test.json",
 
   "include": ["./**/*"]
 }