bump(pixeltable): 933c15b5 → ec4c931a (#3985)

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

.claude-plugin/marketplace.json

@@ -2301,7 +2301,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/pixeltable/pixeltable-skill.git",
-        "sha": "933c15b55a49aa375ce0300c074bdf43b68571b9"
+        "sha": "ec4c931a24a4b3e423b66f8dd8c381c57e2f39b1"
       },
       "homepage": "https://docs.pixeltable.com"
     },