Improve Person regrouping (EXPOSUREAPP-10154) (#4329)

* unit tests
check for vaccinations

* Improve loading/saving

* Fix test

* unit tests

* unit tests

* filter persons without vaccination

* Remove re-grouping

* Avoid validation rule deserialization

* Reflect booster rules immediately

* Update Corona-Warn-App/src/main/java/de/rki/coronawarnapp/covidcertificate/vaccination/core/repository/storage/VaccinationStorage.kt

thanks

Co-authored-by: BMItr <Berndus@gmx.de>

* Update VaccinationStorage.kt

* Fix badge

* Group on load

* Ignore test

* Disable test

Co-authored-by: Chilja Gossow <49635654+chiljamgossow@users.noreply.github.com>
Co-authored-by: BMItr <Berndus@gmx.de>