Issue #2916306 by TR, quietone, pfrenssen: Use "@return" instead of "@returns"

core/lib/Drupal/Core/Form/EnforcedResponseException.php

core/lib/Drupal/Core/Render/Renderer.php

core/lib/Drupal/Core/Session/SessionConfiguration.php

...nt_translation/src/ContentTranslationManagerInterface.php

.../content_translation/src/FieldTranslationSynchronizer.php

...ts/src/Kernel/ResourceType/ResourceTypeRepositoryTest.php

core/modules/migrate/src/Plugin/MigrationInterface.php

core/modules/page_cache/src/StackMiddleware/PageCache.php

...dules/serialization/src/Normalizer/DateTimeNormalizer.php

...m/tests/modules/router_test_directory/src/TestContent.php

core/modules/views/src/Plugin/views/field/EntityLink.php

core/tests/Drupal/Tests/Component/Datetime/TimeTest.php

core/tests/Drupal/Tests/Core/Asset/JsOptimizerUnitTest.php

...ts/Drupal/Tests/Core/Entity/ContentEntityBaseUnitTest.php

...ts/Drupal/Tests/Core/Session/SessionConfigurationTest.php