fixup! module: improve error message for invalid data URL

Author: aduh95

lib/internal/modules/esm/loader.js

@@ -17,6 +17,7 @@ const {
   ERR_INVALID_RETURN_PROPERTY,
   ERR_INVALID_RETURN_PROPERTY_VALUE,
   ERR_INVALID_RETURN_VALUE,
+  ERR_UNKNOWN_MODULE_FORMAT
 } = require('internal/errors').codes;
 const { URL, pathToFileURL } = require('internal/url');
 const { validateString } = require('internal/validators');