[manual] Use api.zulip.com to access the Humbug API.

This needs to be deployed after the nginx configuration is deployed.

(imported from commit 167a3d9d27595d40883bb400ebcc44c4ad9b6a2f)

bots/zephyr_mirror_backend.py

@@ -70,7 +70,7 @@ class RandomExponentialBackoff(CountingBackoff):
             print message
         time.sleep(delay)
 
-DEFAULT_SITE = "https://api.humbughq.com"
+DEFAULT_SITE = "https://api.zulip.com"
 
 class States:
     Startup, HumbugToZephyr, ZephyrToHumbug, ChildSending = range(4)