Changelog of the proposed runtime:   

⬆️ Upgrade to Polkadot SDK stable2412-2

✨ Prepare pallets for async backing

🏗️ Funding pallet migration for enabling async backing

🏗️ Linear release block number provider migration

🏗️ Vesting pallet block number provider migration

🏗️ Migrate pallet staking to use new block time

✨ Allow XCM Transact by

🐛 Correct Async Backing migrations

✅ Add XCM Transact emulator tests

🔖 Release Polimec 1.1.0

More information to be found here: [https://github.com/Polimec/polimec-node/releases/tag/v1.1.0](https://github.com/Polimec/polimec-node/releases/tag/v1.1.0)

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)`

Authorize an upgrade to a given `code_hash` for the runtime. The runtime can be supplied
later.

This call requires Root origin.

#25 Runtime upgrade to Polimec 1.1.0

No Active Proposals