v3.4.0 - Intermediary Upgrade

To begin the process of the v4 upgrade, we need to install a temporary upgrade that will halt some of the systems on Jackal while keeping the chain alive while storage providers migrate. The /x/storage module will enter what is essentially a read-only state. This means that no storage deal will be able to be made, and no storage deals will be burned while this version is active.

## Guide
Please visit the upgrade guide for details.

## Changelog
- Halt new storage deals.
- Halt the burning of deals.
- Halt reward system.

## The Code
Check out the release here: v3.4.0.