6 files declare their use of GeofieldProximitySourceManager in Geofield 8

ContextProximityFilter.php in src/Plugin/GeofieldProximitySource/ContextProximityFilter.php

GeofieldProximityArgument.php in src/Plugin/views/argument/GeofieldProximityArgument.php

GeofieldProximityField.php in src/Plugin/views/field/GeofieldProximityField.php

GeofieldProximityFilter.php in src/Plugin/views/filter/GeofieldProximityFilter.php

GeofieldProximitySort.php in src/Plugin/views/sort/GeofieldProximitySort.php

OriginFromProximityFilter.php in src/Plugin/GeofieldProximitySource/OriginFromProximityFilter.php