Merge pull request #24716 from owncloud/fix-test-namespaces-2

apps/files_sharing/tests/deleteorphanedsharesjobtest.php

apps/files_sharing/tests/server2server.php

tests/lib/APITest.php

tests/lib/AllConfigTest.php

tests/lib/AppTest.php

tests/lib/CapabilitiesManagerTest.php

tests/lib/ConfigTest.php

tests/lib/ContactsManagerTest.php

tests/lib/ErrorHandlerTest.php

tests/lib/HTTPHelperTest.php

tests/lib/HelperStorageTest.php

tests/lib/ImageTest.php

tests/lib/LegacyHelperTest.php

tests/lib/NaturalSortTest.php

tests/lib/RepairStepTest.php

tests/lib/SetupTest.php

tests/lib/StreamWrappersTest.php

tests/lib/TagsTest.php

tests/lib/TemplateFunctionsTest.php

tests/lib/UpdaterTest.php