This proposal aims to complete the first of many steps required to open a bi-directional HRMP channel between Pendulum and Bifrost.
Initially, its primary function is to enable vDOT as Spacewalk collateral.

Schedule a majority-carries referendum to be tabled next once it is legal to schedule
an external referendum.

The dispatch of this call must be `ExternalMajorityOrigin`.

- `proposal_hash`: The preimage hash of the proposal.

Unlike `external_propose`, blacklisting has no effect on this and it may replace a
pre-scheduled `external_propose` call.

Weight: `O(1)`

- **Problem Statement:** Establishing a bi-directional HRMP channel between Pendulum and Bifrost for vDOT as Spacewalk collateral.
- **Significance:** Facilitating the first step towards enabling the HRMP channel is crucial for operational efficiency.
- **Proposed Solution:** Complete the necessary steps to open the bi-directional HRMP channel.
- **Expected Outcomes:** Improved operational efficiency and enhanced collaboration between Pendulum and Bifrost.

#31 Open HRMP channel request with Bifrost