Upgrade Pillow to 11.3.0 to fix security vulnerability

end-to-end-use-cases/whatsapp_llama_4_bot/requirements.txt

@@ -25,7 +25,7 @@ markdown-it-py==3.0.0
 mdurl==0.1.2
 multidict==6.4.3
 numpy==2.2.4
-pillow==11.2.1
+pillow>=11.3.0
 propcache==0.3.1
 pyarrow==19.0.1
 pydantic==2.11.3