6 files declare their use of RedisTestInterfaceTrait in Redis 8

RedisCacheTest.php in tests/src/Kernel/RedisCacheTest.php

RedisFloodTest.php in tests/src/Kernel/RedisFloodTest.php

RedisLockFunctionalTest.php in tests/src/Functional/Lock/RedisLockFunctionalTest.php

RedisLockTest.php in tests/src/Kernel/RedisLockTest.php

RedisQueueTest.php in tests/src/Kernel/RedisQueueTest.php

WebTest.php in tests/src/Functional/WebTest.php