Merge #3469

3469: Fix overrides (backport #3468) r=nextgens a=mergify[bot]

## What type of PR?

bug-fix

## What does this PR do?

Fix broken overrides introduced in 2024.06.17

### Related issue(s)
- closes #3467

## Prerequisites
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
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file.
<hr>This is an automatic backport of pull request #3468 done by [Mergify](https://mergify.com).

Co-authored-by: Florent Daigniere <nextgens@freenetproject.org>

core/dovecot/conf/dovecot.conf

@@ -238,4 +238,4 @@ service anvil {
 # Extensions
 ###############
 
-!include_try /overrides/dovecot/proxy.conf
+!include_try /overrides/dovecot.conf

core/nginx/dovecot/proxy.conf

@@ -183,4 +183,4 @@ service submission-login {
   vsz_limit = 256M
 }
 
-!include_try /overrides/dovecot.conf
+!include_try /overrides/dovecot/proxy.conf

towncrier/newsfragments/3467.bugfix

@@ -0,0 +1 @@
+Fix broken overrides in 2024.06.17