services: update postgres init

modules/services/server/postgresql.nix

@@ -30,7 +30,7 @@
         host  signaldb    mautrixsignal   samehost scram-sha-256
         host  keycloakdb  keycloak        samehost scram-sha-256
     '';
-    initialScript = config.age.secrets."services/postgresql/initScript".path;
+    initialScript = config.age.secrets."services/postgresql/initScript.sql".path;
     ensureDatabases = [
         "giteadb"
         "nextclouddb"
@@ -88,7 +88,7 @@
 
   services.postgresqlBackup.enable = true;
 
-  age.secrets."services/postgresql/initScript" = {
+  age.secrets."services/postgresql/initScript.sql" = {
       file = ../../../secrets/services/postgresql/initScript.age;
       owner = "postgres";
   };