1.0.0-RC1

chore: Require PHP 8
refactor(injector): Widen type hints from Horde_Injector to Horde_Injector|Injector
fix: More defensive code when trying to drop tables
docs: Clarify where to put local overrides
fix: Drop unneeded / uninitialized getInfo() parameter
fix: Drop unnecessary / uninitialized form parametet
fix: getInfo() no longer writes back to second parameter. Use return value.
Mark as a H6 app.
changed requirement horde/Core to lowercase
Add CI job for satis repo update
Development mode for ulaform-1.0.0alpha3