Runtime Upgrade - Prepare for ACA staking

#4 Runtime Upgrade - Parameter update and protocol improvements

#3 Runtime Upgrade - Update Substrate / Cumulus / Polkadot version

A proposal has been made to make some changes to Acala, a decentralized finance platform. Here are the changes that will be made:

1. LCDOT/DOT, LCDOT/aUSD, and ACA/aUSD pairs will be enabled via Bootstrap.
2. DOT and LcDOT will be added as collaterals to mint aUSD.
3. ACA Incentive Programs will be enabled for different pools on Acalaswap.
4. The programs will run for six months and will have different rewards for each pool.
5. Users can redeem rewards early, and LP tokens can be withdrawn at any time.

Democracy Referenda