proto: Promote the latest message definitions into final v1 packages

At present, the latest versions of the Protobuf definitions are all v1beta*. The versions of the types we will be using in CometBFT v1 must be v1 instead.

For example, proto/cometbft/abci/v1beta4 should actually be proto/cometbft/abci/v1 (or the v1 folder should contain the latest, most up-to-date definitions of the types currently used by CometBFT v1).