chore(flutter_test): updated 'matchesGoldenFile' documentation (#96194)

diff --git a/AUTHORS b/AUTHORS
index c6f1a90..d30ad28 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -89,3 +89,5 @@
 Kai Yu <yk3372@gmail.com>
 Denis Grafov <grafov.denis@gmail.com>
 TheOneWithTheBraid <the-one@with-the-braid.cf>
+Alberto Miola <betoman96@gmail.com>
+Twin Sun, LLC <google-contrib@twinsunsolutions.com>