11 files declare their use of SectionStorageManagerInterface in Drupal 9

InlineBlockEntityOperations.php in core/modules/layout_builder/src/InlineBlockEntityOperations.php

LayoutBuilderLocalTaskDeriver.php in core/modules/layout_builder/src/Plugin/Derivative/LayoutBuilderLocalTaskDeriver.php

LayoutBuilderRoutes.php in core/modules/layout_builder/src/Routing/LayoutBuilderRoutes.php

LayoutBuilderRoutesTest.php in core/modules/layout_builder/tests/src/Unit/LayoutBuilderRoutesTest.php

LayoutEntityHelperTraitTest.php in core/modules/layout_builder/tests/src/Kernel/LayoutEntityHelperTraitTest.php

LayoutTempstoreParamConverter.php in core/modules/layout_builder/src/Routing/LayoutTempstoreParamConverter.php

LayoutTempstoreParamConverterTest.php in core/modules/layout_builder/tests/src/Unit/LayoutTempstoreParamConverterTest.php

OverridesSectionStorage.php in core/modules/layout_builder/src/Plugin/SectionStorage/OverridesSectionStorage.php

OverridesSectionStorageTest.php in core/modules/layout_builder/tests/src/Unit/OverridesSectionStorageTest.php

QuickEditIntegration.php in core/modules/layout_builder/src/QuickEditIntegration.php

SetInlineBlockDependency.php in core/modules/layout_builder/src/EventSubscriber/SetInlineBlockDependency.php