Whitelist for Kusama Asset Hub runtime upgrade 1.4.2: https://kusama.subsquare.io/referenda/505

```bash
opengov-cli build-upgrade --network kusama --only --asset-hub "v1.4.2"
opengov-cli submit-referendum \
    --proposal "./upgrade-kusama-1.4.2/kusama-1.4.2.call" \
    --network "kusama" --track "whitelistedcaller"
```

And then manually replace the `lookup` with an `inline`.

- **Problem Statement:** Implementing a whitelist for the Kusama Asset Hub runtime upgrade 1.4.2.
- **Significance:** Enhancing security and functionality for the Kusama Asset Hub.
- **Proposed Solution:** Whitelisting specific callers by upgrading to runtime version 1.4.2.
- **Expected Outcomes:** Improved security and functionality for the Kusama Asset Hub.

#94 [Runtime 1.4.2] Upgrade Asset Hub