1. Delete integration from Settings -> Devices & Services.
2. Update to v2.2.0 release.
3. Add the integration under Settings -> Devices & Services.

This procedure will preserve entity names. If updated in place, existing meter and battery entities will have a _2 suffix after updating to a v2.2.x or higher release, or from a v1.x.x to a v2.x.x release. If this happens you can either update everything to use the new names, or follow the recommended update procedure to avoid renaming. This assumes the default entity names: custom names will have to be handled manually in any case.