6 files declare their use of Sort in JSON:API 8

EntityResource.php in src/Controller/EntityResource.php

EntityResourceTest.php in tests/src/Kernel/Controller/EntityResourceTest.php

JsonApiParamEnhancer.php in src/Routing/JsonApiParamEnhancer.php

JsonApiParamEnhancerTest.php in tests/src/Unit/Routing/JsonApiParamEnhancerTest.php

SortNormalizer.php in src/Normalizer/SortNormalizer.php

SortNormalizerTest.php in tests/src/Kernel/Normalizer/SortNormalizerTest.php