update example parameter (Azure#24676)

* update example parameter

* update file

Author: kazrael2119

specification/frontdoor/resource-manager/Microsoft.Network/stable/2022-05-01/examples/WafPolicyCreateOrUpdate.json

@@ -11,7 +11,7 @@
           "enabledState": "Enabled",
           "mode": "Prevention",
           "redirectUrl": "http://www.bing.com",
-          "customBlockResponseStatusCode": 499,
+          "customBlockResponseStatusCode": 429,
           "customBlockResponseBody": "PGh0bWw+CjxoZWFkZXI+PHRpdGxlPkhlbGxvPC90aXRsZT48L2hlYWRlcj4KPGJvZHk+CkhlbGxvIHdvcmxkCjwvYm9keT4KPC9odG1sPg==",
           "requestBodyCheck": "Disabled"
         },
@@ -132,7 +132,7 @@
             "enabledState": "Enabled",
             "mode": "Prevention",
             "redirectUrl": "http://www.bing.com",
-            "customBlockResponseStatusCode": 499,
+            "customBlockResponseStatusCode": 429,
             "customBlockResponseBody": "PGh0bWw+CjxoZWFkZXI+PHRpdGxlPkhlbGxvPC90aXRsZT48L2hlYWRlcj4KPGJvZHk+CkhlbGxvIHdvcmxkCjwvYm9keT4KPC9odG1sPg==",
             "requestBodyCheck": "Disabled"
           },
@@ -265,7 +265,7 @@
             "enabledState": "Enabled",
             "mode": "Prevention",
             "redirectUrl": "http://www.bing.com",
-            "customBlockResponseStatusCode": 499,
+            "customBlockResponseStatusCode": 429,
             "customBlockResponseBody": "PGh0bWw+CjxoZWFkZXI+PHRpdGxlPkhlbGxvPC90aXRsZT48L2hlYWRlcj4KPGJvZHk+CkhlbGxvIHdvcmxkCjwvYm9keT4KPC9odG1sPg=="
           },
           "customRules": {
@@ -396,7 +396,7 @@
             "enabledState": "Enabled",
             "mode": "Prevention",
             "redirectUrl": "http://www.bing.com",
-            "customBlockResponseStatusCode": 499,
+            "customBlockResponseStatusCode": 429,
             "customBlockResponseBody": "PGh0bWw+CjxoZWFkZXI+PHRpdGxlPkhlbGxvPC90aXRsZT48L2hlYWRlcj4KPGJvZHk+CkhlbGxvIHdvcmxkCjwvYm9keT4KPC9odG1sPg==",
             "requestBodyCheck": "Disabled"
           },