private static void validateCharacterVal(
            ReadableConfig tableOptions, ConfigOption<String> option) {
        validateCharacterVal(tableOptions, option, false);
    }
Validates the option {@code option} value must be a Character.
inlong-sort/sort-formats/format-rowdata/format-rowdata-csv/src/main/java/org/apache/inlong/sort/formats/csv/CsvFormatFactory.java