ai-assistant: Upgrade react-syntax-highlighter to 16.1.0

Signed-off-by: René Dudfield <renedudfield@microsoft.com>

Author: illume

ai-assistant/package-lock.json

@@ -51,7 +51,7 @@
     "prismjs": "^1.30.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "react-syntax-highlighter": "^15.6.1",
+    "react-syntax-highlighter": "^16.1.0",
     "remark-gfm": "^4.0.1",
     "sanitize-html": "^2.17.0",
     "use-between": "^1.3.5",