Adds submodule to python hello world template (#10991)

Author: dom96

.changeset/bitter-dingos-remain.md

@@ -0,0 +1,5 @@
+---
+"create-cloudflare": minor
+---
+
+Adds submodule to Python hello world template

packages/create-cloudflare/templates/hello-world/py/src/entry.py

@@ -1,5 +1,5 @@
 from workers import Response, WorkerEntrypoint
-
+from submodule import get_hello_message
 class Default(WorkerEntrypoint):
     async def fetch(self, request):
-        return Response("Hello World!")
+        return Response(get_hello_message())

packages/create-cloudflare/templates/hello-world/py/src/submodule.py

@@ -0,0 +1,2 @@
+def get_hello_message():
+    return "Hello World!"