nixos/soft-serve: restart trigger added (#384829)

Previously changing configuration did not apply to the running service
requiring it to be restarted manually. This fixes that issue.

Author: JeremiahSecrist

nixos/doc/manual/release-notes/rl-2505.section.md

@@ -544,6 +544,8 @@
 
 - `services.gitea` now supports CAPTCHA usage through the `services.gitea.captcha` variable.
 
+- `services.soft-serve` now restarts upon config change.
+
 - `bind.cacheNetworks` now only controls access for recursive queries, where it previously controlled access for all queries.
 
 - [`services.mongodb.enableAuth`](#opt-services.mongodb.enableAuth) now uses the newer [mongosh](https://github.com/mongodb-js/mongosh) shell instead of the legacy shell to configure the initial superuser. You can configure the mongosh package to use through the [`services.mongodb.mongoshPackage`](#opt-services.mongodb.mongoshPackage) option.

nixos/modules/services/misc/soft-serve.nix

@@ -59,6 +59,8 @@ in
 
       environment.SOFT_SERVE_DATA_PATH = stateDir;
 
+      restartTriggers = [ configFile ];
+
       serviceConfig = {
         Type = "simple";
         DynamicUser = true;