chore: add updater image configuration to Docker workflow

- Introduced a new job for building and pushing an updater Docker image, dynamically setting its name based on the repository structure.
- Updated existing image name configurations for frontend and backend to strip version numbers, ensuring cleaner image tags.
- Enhanced the Docker workflow with steps for checking out the repository, configuring Buildx, and logging into the Gitea registry.

deploy/docker-compose.yml

@@ -0,0 +1,46 @@
+services:
+  backend:
+    image: git.shts.su/denozord/mikrotikmanager-backend:latest
+    container_name: mmapp-backend
+    restart: unless-stopped
+    ports:
+      - "8000:8000"
+    environment:
+      CORS_ORIGIN: ${CORS_ORIGIN:-http://localhost:3000}
+    volumes:
+      - backend-data:/app/data
+    labels:
+      mmapp.updater.managed: "true"
+      mmapp.updater.target: backend
+      mmapp.updater.image: git.shts.su/denozord/mikrotikmanager-backend:latest
+
+  frontend:
+    image: git.shts.su/denozord/mikrotikmanager-frontend:latest
+    container_name: mmapp-frontend
+    restart: unless-stopped
+    ports:
+      - "3000:3000"
+    labels:
+      mmapp.updater.managed: "true"
+      mmapp.updater.target: frontend
+      mmapp.updater.image: git.shts.su/denozord/mikrotikmanager-frontend:latest
+
+  updater:
+    image: git.shts.su/denozord/mikrotikmanager-updater:latest
+    container_name: mmapp-updater
+    restart: unless-stopped
+    environment:
+      REGISTRY: git.shts.su
+      REGISTRY_USERNAME: ${REGISTRY_USERNAME:-}
+      REGISTRY_PASSWORD: ${REGISTRY_PASSWORD:-}
+      POLL_INTERVAL_SECONDS: ${POLL_INTERVAL_SECONDS:-300}
+      HEALTH_TIMEOUT_SECONDS: ${HEALTH_TIMEOUT_SECONDS:-120}
+      STOP_TIMEOUT_SECONDS: ${STOP_TIMEOUT_SECONDS:-30}
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+      - updater-state:/state
+      - ./updater/targets.json.example:/etc/updater/targets.json:ro
+
+volumes:
+  backend-data:
+  updater-state: