default Map<String, String> parseProperties(Map<String, Object> properties) {
        return properties.entrySet().stream()
                .filter(v -> Objects.nonNull(v.getValue()))
                .collect(Collectors.toMap(Map.Entry::getKey, e -> e.getValue().toString()));
    }
Parse properties

@param properties The properties with string key and object value
@return The properties with string key and string value
inlong-manager/manager-pojo/src/main/java/org/apache/inlong/manager/pojo/sort/node/base/NodeProvider.java