6 files declare their use of DumperPluginManager in Geocoder 8.2

AddressGeocodeFormatter.php in modules/geocoder_address/src/Plugin/Field/FieldFormatter/AddressGeocodeFormatter.php

DefaultField.php in modules/geocoder_field/src/Plugin/Geocoder/Field/DefaultField.php

FileGeocodeFormatter.php in modules/geocoder_field/src/Plugin/Field/FieldFormatter/FileGeocodeFormatter.php

GeocodeFormatterBase.php in modules/geocoder_field/src/Plugin/Field/GeocodeFormatterBase.php

GeocoderApiEnpoints.php in src/Controller/GeocoderApiEnpoints.php

GeoPhpGeocodeFormatter.php in modules/geocoder_geofield/src/Plugin/Field/FieldFormatter/GeoPhpGeocodeFormatter.php