Fix integration tests

Author: Anilm3

appsec/tests/integration/src/test/groovy/com/datadog/appsec/php/integration/CommonTests.groovy

@@ -181,7 +181,7 @@ trait CommonTests {
 
     @Test
     void 'test blocking and stack generation'() {
-        HttpRequest req = container.buildReq('/generate_stack.php?id=user2020').GET().build()
+        HttpRequest req = container.buildReq('/generate_stack.php?id=stack_user').GET().build()
         def trace = container.traceFromRequest(req, ofString()) { HttpResponse<String> re ->
             assert re.statusCode() == 403
             assert re.body().contains('blocked')

appsec/tests/integration/src/test/waf/recommended.json

@@ -44,7 +44,7 @@
                 "address": "usr.id"
               }
             ],
-            "data": "blocked_users"
+            "data": "blocked_users_with_stack"
           },
           "operator": "exact_match"
         }
@@ -6894,6 +6894,17 @@
         }
       ]
     },
+    {
+      "id": "blocked_users_with_stack",
+      "type": "data_with_expiration",
+      "data": [
+        {
+          "value": "stack_user",
+          "expiration": 0
+        }
+      ]
+    },
+
     {
       "id": "redirected_users",
       "type": "data_with_expiration",