public ConfigRegistry createInstanceConfiguration(ConfigRegistry config) {
        ConfigRegistry instanceConfiguration = config.createCopy();
        instanceConfigCustomizer.customize(instanceConfiguration);
        return instanceConfiguration;
    }
Create an instance specific configuration based on all instance customizers. The instance configuration holds all
custom configuration that was applied e.g. through instance annotations.

@param config A configuration object. The object is not changed
@return A new configuration object with all changes applied
core/src/main/java/org/jdbi/v3/core/extension/ExtensionMetadata.java