add dlt requirement for cloudflare

Author: sh-rp

docs/website/requirements.txt

@@ -1,7 +1,9 @@
+# NOTE: the below is used by cloudlfare to install python dependencies used for building
 pydoc-markdown==4.8.2
 typing-extensions==4.6.3
 databind.json==4.4.2
 databind.core==4.4.2
 watchdog==3.0.0
 requests>=2.31.0
-python-debouncer>=0.1.0
+python-debouncer>=0.1.0
+dlt