Cleanup the test data

Author: kean

Tests/WordPressKitTests/Mock Data/site-subscriber-get-details-response-invalid-country.json

@@ -1,13 +1,13 @@
 {
-    "user_id": 255064965,
-    "subscription_id": 907116368,
-    "email_address": "grebenyuk.alexander+test@icloud.com",
+    "user_id": 123,
+    "subscription_id": 123,
+    "email_address": "test@example.com",
     "date_subscribed": "2025-04-17T14:40:00+00:00",
     "is_email_subscriber": false,
     "subscription_status": "Subscribed",
-    "avatar": "https://0.gravatar.com/avatar/694664524f7d391c4425ab07627f4e44e970f597985d24ce3dc4c27173316c20?s=128&d=https%3A%2F%2F0.gravatar.com%2Favatar%2Fad516503a11cd5ca435acc9bb6523536%3Fs%3D128&r=G",
+    "avatar": "https://example.com/avatar",
     "display_name": "Alex",
-    "url": "http://test841027.wordpress.com",
+    "url": "http://example.wordpress.com",
     "country": {
         "code": "",
         "name": false

Tests/WordPressKitTests/Mock Data/site-subscriber-get-details-response.json

@@ -1,13 +1,13 @@
 {
-    "user_id": 255064965,
-    "subscription_id": 907116368,
-    "email_address": "grebenyuk.alexander+test@icloud.com",
+    "user_id": 123,
+    "subscription_id": 123,
+    "email_address": "test@example.com",
     "date_subscribed": "2025-04-17T14:40:00+00:00",
     "is_email_subscriber": false,
     "subscription_status": "Subscribed",
-    "avatar": "https://0.gravatar.com/avatar/694664524f7d391c4425ab07627f4e44e970f597985d24ce3dc4c27173316c20?s=128&d=https%3A%2F%2F0.gravatar.com%2Favatar%2Fad516503a11cd5ca435acc9bb6523536%3Fs%3D128&r=G",
+    "avatar": "https://example.com/avatar",
     "display_name": "Alex",
-    "url": "http://test841027.wordpress.com",
+    "url": "http://example.wordpress.com",
     "country": {
         "code": "US",
         "name": "United States"