Update cupertino.yml

Author: brianquinlan

.github/workflows/cupertino.yml

@@ -38,7 +38,8 @@ jobs:
 #          flutter-version: 5994e6174f18dbd7b4c8b5c4bfc1469a0d17f261 # Fails Jun 13: https://github.com/flutter/flutter/commit/5994e6174f18dbd7b4c8b5c4bfc1469a0d17f261
 #          flutter-version: 299e1572272e32e56e577c3ddd9ce98ef40ddeab # Suceeded Jan 21 : https://github.com/flutter/flutter/commit/299e1572272e32e56e577c3ddd9ce98ef40ddeab
 #          flutter-version: b8a4ddffe59409301dd9c492dce64403ad418a52 # Suceeded Apr 14 : https://github.com/flutter/flutter/commit/b8a4ddffe59409301dd9c492dce64403ad418a52
-          flutter-version: 83483976ec0c2667bb991d052a0e02c691687bf2 # April 24
+          flutter-version: 66ecc88655b7652c2a76cbab7e067c456c5e06d1 # April 18
+#          flutter-version: 83483976ec0c2667bb991d052a0e02c691687bf2 # Fails April 24
 #           flutter-version: 14c45d944e486ab5742898b7beb90b03399884ea # Fails May 4
 #          flutter-version: f7354da75b2718f1e5407edab92c80c730312215 # Fails May 21 : https://github.com/flutter/flutter/commit/f7354da75b2718f1e5407edab92c80c730312215