Drop uuid dependency

The uuid version we use to rely upon (3.4.0) is now marked as deprecated.

Newer versions of the package rely on node APIs that are not available
in k6, and as a result, we cannot use it anymore.

package.json

@@ -26,7 +26,6 @@
         "eslint-plugin-import": "^2.29.1",
         "terser-webpack-plugin": "^5.3.10",
         "typescript": "^5.5.4",
-        "uuid": "^10.0.0",
         "webpack": "^5.93.0",
         "webpack-cli": "^5.1.4",
         "webpack-glob-entries": "^1.0.1"