Backport project.json fixture from EE

This backports all changes made to an import/export fixture file from EE
to CE.

spec/lib/gitlab/import_export/project.json

@@ -2775,7 +2775,8 @@
           "action": 1,
           "author_id": 1
         }
-      ]
+      ],
+      "approvals_before_merge": 1
     },
     {
       "id": 26,