public static CasConfigurationMetadataRepositoryJsonBuilder create() {
        return create(StandardCharsets.UTF_8);
    }
Create a new builder instance using {@link StandardCharsets#UTF_8} as the default
charset.

@return a new {@link ConfigurationMetadataRepositoryJsonBuilder} instance.
support/cas-server-support-configuration-metadata-repository/src/main/java/org/springframework/boot/configurationmetadata/CasConfigurationMetadataRepositoryJsonBuilder.java