refactor: add newline at end of file

It is recommended to put a newline at the end of the file.

Author: deepsource-autofix[bot]

Guido's Gorgeous Lasagna/lasagna.py

@@ -57,4 +57,4 @@ def elapsed_time_in_minutes(number_of_layers, elapsed_bake_time):
     time already spent baking and calculates the total elapsed minutes spent cooking the
     lasagna.
     """
-    return preparation_time_in_minutes(number_of_layers) + elapsed_bake_time
+    return preparation_time_in_minutes(number_of_layers) + elapsed_bake_time

Hello_World/hello_world.py

@@ -1,2 +1,2 @@
 def hello():
-    return 'Hello, World!'
+    return 'Hello, World!'