forgotten url for test

tests/validation/config.json

@@ -1026,7 +1026,7 @@
         {
             "title": "Prepass SSAO + particles",
             "renderCount": 50,
-            "playgroundId": "#65MUMZ#45",
+            "playgroundId": "#65MUMZ#46",
             "excludedEngines": ["webgl1"],
             "referenceImage": "prepass-ssao-particles.png"
         },