bump(posthog): 39a8593e → 835f4f64 (#3375)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -2206,7 +2206,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/PostHog/ai-plugin.git",
-        "sha": "39a8593ef773f643c34cfdb759c0c0d6f7311c93"
+        "sha": "835f4f647fec8a8fbde8ea00cf9b2432a35d7e5b"
       },
       "homepage": "https://posthog.com/docs/model-context-protocol"
     },