v4.1.0 - Minor release for Epoch time reduction

This release provides large speedups to the Osmosis epoch time. It does by reducing the amount of events emitted, to have less redundant data. It now only emits one event per address receiving LP rewards.

This upgrade is state-compatible with v4.0.0, and has been tested to be so with many different node operators now. It is encouraged for full nodes & validators to upgrade, in order to significantly reduce their load every epoch.