Merge #1928

1928: Change letsencrypt timer from 1h --> 1 day r=mergify[bot] a=jackmurray

There's no need to be calling certbot so frequently. Letsencrypt certificates last for 90 days so polling every hour is just wasteful. Once per day should be more than sufficient to catch any certificates before they even get close to expiring.

## What type of PR?

Enhancement

## What does this PR do?

Reduces unnecessary load on the Letsencrypt ACME servers.

## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.

- [ ] In case of feature or enhancement: documentation updated accordingly
- [ ] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file.


Co-authored-by: Jack Murray <github@c0rporation.com>

core/nginx/letsencrypt.py

@@ -22,8 +22,8 @@ command = [
 # Wait for nginx to start
 time.sleep(5)
 
-# Run certbot every hour
+# Run certbot every day
 while True:
     subprocess.call(command)
-    time.sleep(3600)
+    time.sleep(86400)