Apply suggestions from code review

Co-authored-by: Davide <davideneri18@gmail.com>

Author: per1234

internal/orchestrator/app/generator/app_template/python/main.py

@@ -1,8 +1,10 @@
+import time 
+
 def main():
     print("Hello World!")
     # Loop forever to keep App in running state.
     while True:
-        continue
+        time.sleep(1)
 
 
 if __name__ == "__main__":