ci: переключить registry на git.shx.one

Обновить Gitea Actions, compose, updater и ссылки на образы.

Co-authored-by: Cursor <[email protected]>

deploy/updater/targets.json.example

@@ -3,7 +3,7 @@
     {
       "id": "backend",
       "container_name": "mmapp-backend",
-      "image": "git.shts.su/denozord/mikrotikmanager-backend:latest",
+      "image": "git.shx.one/denozord/mikrotikmanager-backend:latest",
       "health": {
         "type": "http",
         "url": "http://backend:8000/health",
@@ -13,7 +13,7 @@
     {
       "id": "frontend",
       "container_name": "mmapp-frontend",
-      "image": "git.shts.su/denozord/mikrotikmanager-frontend:latest",
+      "image": "git.shx.one/denozord/mikrotikmanager-frontend:latest",
       "health": {
         "type": "http",
         "url": "http://frontend:3000/dashboard",