fix(all stacks): Caddy networking

gitea/docker-compose.yaml

@@ -28,3 +28,11 @@ services:
 volumes:
   gitea:
     name: gitea
+
+networks:
+  postgresql-network:
+    external: true
+    name: postgresql-network
+  caddy-network:
+    external: true
+    name: caddy-network

postgresql/docker-compose.yaml

@@ -45,3 +45,6 @@ networks:
   postgresql-network:
     external: true
     name: postgresql-network
+  caddy-network:
+    external: true
+    name: caddy-network