bump(langfuse-observability): 75db78dc → b5211009 (#6171)

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

.claude-plugin/marketplace.json

@@ -1977,7 +1977,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/langfuse/claude-observability-plugin.git",
-        "sha": "75db78dc62aefbf92e411e75122e473fb14509d4"
+        "sha": "b5211009698fdfe79c6bbe90d6901ad255ea65d3"
       },
       "homepage": "https://langfuse.com/integrations/other/claude-code"
     },