chore(tests): update test snapshots

tests/robot-tests/tests/snapshots/find_statistics_snapshot.json

@@ -325,7 +325,7 @@
     "publication_summary": "GCSE results of pupils at the end of KS4 attending state-funded schools in England at national & LA level. This release includes pupil characteristic breakdowns",
     "publication_title": "Key stage 4 performance",
     "published": "5 Dec 2024",
-    "release_type": "Official statistics",
+    "release_type": "Accredited official statistics",
     "theme": "School and college outcomes and performance"
   },
   {