Update postgres Docker tag to v18

docker-compose.yml

@@ -2,7 +2,7 @@ name: gitea
 
 services:
   server:
-    image: gitea/gitea:1.25.4
+    image: gitea/gitea:1.25.3
     container_name: gitea
     depends_on:
       - db_pg17
@@ -68,7 +68,7 @@ services:
       - mail_from
 
   runner:
-    image: gitea/act_runner:0.3.0
+    image: gitea/act_runner:0.2.13
     container_name: gitea_runner
     depends_on:
       - server
@@ -88,7 +88,7 @@ services:
       - runner_token
 
   db_pg17:
-    image: postgres:18.3
+    image: postgres:18.1
     container_name: gitea_db_pg17
     restart: unless-stopped
     healthcheck: