Corrected content api test key

no issue

- we reduced the key length

core/test/functional/api/v2/content/utils.js

@@ -82,6 +82,6 @@ module.exports = {
         }
     },
     getValidKey() {
-        return _.repeat('c', 128);
+        return testUtils.DataGenerator.Content.api_keys[1].secret;
     }
 };

core/test/utils/fixtures/data-generator.js

@@ -392,7 +392,7 @@ DataGenerator.Content = {
         {
             id: ObjectId.generate(),
             type: 'content',
-            secret: _.repeat('c', 128)
+            secret: _.repeat('c', 26)
             // integration_id: DataGenerator.Content.integrations[0].id
         },
         {