test: fix ESM test

The previously landed commit was broken and it’s too late to force-push. Fixing up the test seems to work. Refs: #21352 PR-URL: #21605 Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Colin Ihrig <[email protected]>

Author: addaleax

test/es-module/test-esm-loader-invalid-format.mjs

@@ -4,8 +4,8 @@ import assert from 'assert'
 
 import('../fixtures/es-modules/test-esm-ok.mjs')
 .then(assert.fail,expectsError({
-code: 'ERR_INVALID_RETURN_PROPERTY',
-message: 'Expected string to be returned for the "url" from the '+
-'"loader resolve" function but got "undefined"'
+code: 'ERR_INVALID_RETURN_PROPERTY_VALUE',
+message: 'Expected string to be returned for the "format" from the '+
+'"loader resolve" function but got type undefined.'
 }))
 .then(mustCall());