bump(rill): b69fe4d6 → 84f7d7c2 (#5582)

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

.claude-plugin/marketplace.json

@@ -3009,7 +3009,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/rilldata/agent-skills.git",
-        "sha": "b69fe4d676f59da6547d054f6796c8a059885bca"
+        "sha": "84f7d7c29fffe188e588d9e99e1f5245076671d5"
       },
       "homepage": "https://docs.rilldata.com/developers/build/ai-configuration"
     },