Merge pull request #19414 from owncloud/swift_primary_storage_tests

apps/files_sharing/tests/etagpropagation.php

apps/files_sharing/tests/sizepropagation.php

apps/files_versions/tests/command/expiretest.php

autotest.sh

tests/lib/files/objectstore/swift.php

tests/lib/share/share.php

tests/objectstore/entrypoint.sh

tests/objectstore/start-swift-ceph.sh

tests/objectstore/stop-swift-ceph.sh