Networks: create internal docker network for proxy server

Prepare to use caddy in docker

playbook-docker.yml

@@ -26,3 +26,8 @@
     - name: "Login to yandex docker registry."
       ansible.builtin.script:
         cmd: "files/yandex-docker-registry-auth.sh"
+
+    - name: Create a network for web proxy
+      community.docker.docker_network:
+        name: "{{ web_proxy_network }}"
+        driver: "bridge"