feat: add memory limits to Docker services in various configurations

config/ansible/tasks/servers/services/gitea/docker-compose.yml.j2

@@ -15,6 +15,10 @@ services:
     networks:
       - gitea
       - caddy_network
+    deploy:
+      resources:
+        limits:
+          memory: 1G
 
   postgres:
     image: postgres:15-alpine
@@ -29,6 +33,10 @@ services:
       - {{gitea_data_dir}}/postgres:/var/lib/postgresql/data
     networks:
       - gitea
+    deploy:
+      resources:
+        limits:
+          memory: 1G
 
   act_runner:
     image: gitea/act_runner:latest
@@ -46,6 +54,10 @@ services:
     restart: always
     networks:
       - gitea
+    deploy:
+      resources:
+        limits:
+          memory: 2G
 
 networks:
   gitea: