fix: add gstatic.cn domain for recaptcha (#13351)

Author: miketheman

tests/unit/test_recaptcha.py

@@ -243,6 +243,7 @@ def test_csp_policy(self):
             "script-src": [
                 "{request.scheme}://www.recaptcha.net/recaptcha/",
                 "{request.scheme}://www.gstatic.com/recaptcha/",
+                "{request.scheme}://www.gstatic.cn/recaptcha/",
             ],
             "frame-src": ["{request.scheme}://www.recaptcha.net/recaptcha/"],
             "style-src": ["'unsafe-inline'"],

warehouse/recaptcha.py

@@ -68,6 +68,7 @@ def csp_policy(self):
             "script-src": [
                 "{request.scheme}://www.recaptcha.net/recaptcha/",
                 "{request.scheme}://www.gstatic.com/recaptcha/",
+                "{request.scheme}://www.gstatic.cn/recaptcha/",
             ],
             "frame-src": [
                 "{request.scheme}://www.recaptcha.net/recaptcha/",