Update mermaid dependency version to 11.12.1

Author: Guaris

package.json

@@ -28,7 +28,7 @@
     "algoliasearch": "^5.20.0",
     "axios": "^1.7.4",
     "instantsearch.css": "^8.5.1",
-    "mermaid": "^11.6.0",
+    "mermaid": "^11.12.1",
     "node-fetch": "^3.3.2",
     "shiki": "^3.9.2",
     "snowflake-sdk": "^2.1.3",