3.0.0-beta1

fix Psr7Wrapper::getRequestVars typo
allow horde-installer-plugin in release pipeline
adjust CI workflow for the unittest restructure
unittests for Psr7Adapter special status code handling
special handling for status header in Psr7Adapter
added release workflow
updated to modern unittest setup
Update metadata and workflows for PHP 8 support
Development mode for Controller-3.0.0alpha5
Released Controller-3.0.0alpha4
fixed createPsr7Response in case H5Response body is null
Response/Psr7Adapter does not implement Horde_Controller_Response
Add PSR7 Bridges.
Add CI job for satis repo update
ci.yml added, bootstrap adjusted
no errors left
Development mode for Controller-3.0.0alpha5