Issue #3284552 by bircher, benjifisher: Drupal 10 compatibility

.gitattributes

.gitignore

.gitlab-ci.yml

.spoons/ScriptHandler.php

.travis.yml

composer.dev.json

docker-compose.yml

phpstan.neon

src/Config/EphemeralConfigFactory.php

tests/src/Kernel/InactiveSplitTest.php

tests/src/Kernel/IndividualExportImportTest.php

tests/src/Kernel/NewSplitImportTest.php

tests/src/Kernel/RolesSplittingTest.php

tests/src/Kernel/SplitContentEntityTypeTest.php

tests/src/Kernel/SplitMergeTest.php

tests/src/Kernel/StatusOverrideTest.php