Enable bytecode version 7

Description

This proposal enables the deployment of Move bytecode version 7 on mainnet. Version 7 supports new language features of Move 2. However, all those features remain disabled via individual feature flags, making this change functionally a no-op. The major purpose of this change to allow users to deploy default output of compiler v2 (v7 bytecode) on mainnet as long as they do not use certain Move 2 features.