More information about the changes at https://github.com/zeitgeistpm/zeitgeist/releases/tag/v0.3.5

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:** Lack of information on changes in Zeitgeist v0.3.5 for Polkassembly Council members.
- **Significance:** Ensuring Council members are informed about updates to make informed decisions.
- **Proposed Solution:** Review changes at https://github.com/zeitgeistpm/zeitgeist/releases/tag/v0.3.5.
- **Expected Outcomes:** Improved decision-making and understanding of Zeitgeist updates.

#6 Authorize Zeitgeist runtime v0.3.5 upgrade - motion #6