public ConfigurationMetadataRepository build() {
        val result = new SimpleConfigurationMetadataRepository();
        for (val repository : this.repositories) {
            result.include(repository);
        }
        return result;
    }
Build a {@link ConfigurationMetadataRepository} with the current state of this
builder.

@return this builder
support/cas-server-support-configuration-metadata-repository/src/main/java/org/springframework/boot/configurationmetadata/CasConfigurationMetadataRepositoryJsonBuilder.java