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 CouncilMotion users.
- Significance: Ensuring users are informed about updates and changes to make informed decisions.
- Proposed Solution: Referencing the changes at https://github.com/zeitgeistpm/zeitgeist/releases/tag/v0.3.5 for details.
- Expected Outcomes: Improved user understanding and decision-making regarding Zeitgeist updates.

#10 Authorize Zeitgeist runtime v0.3.5 upgrade