Prop 245: Aurora Upgrade

Upgrade Cosmos SDK to 0.v50.14 and IBC v8.3.2 and

This is a major version upgrade for Gravity Bridge that imports the improvements, bugfixes, and security fixes from newer versions of CosmosSDK and IBC-go.
Also included in this upgrade is support for EIP-712 signatures using alternate EVM chain ID.
This allows EVM wallet to sign a message for gravity without changing their wallet chain-id. The frontend can then submit this message to Gravity as a valid transaction, allowing the user to bridge out or even stake all from a purely EVM wallet on another chain.
This is secure and does not risk replay attacks because the signed EIP-712 message must include the Gravity Bridge chain ID.
This provides yet another way for chains to integrate with Gravity and smooth the usage experience.