ci: add deploy workflow

.gitea/workflows/deploy.yml

@@ -0,0 +1,17 @@
+name: Deploy
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Build and deploy bitfielder
+        run: |
+          docker compose -f /home/debian/my-services/docker-compose.yml build --no-cache bitfielder
+          docker compose -f /home/debian/my-services/docker-compose.yml up -d --no-deps bitfielder
+
+      - name: Cleanup old images
+        run: docker image prune -f