Update docker/setup-buildx-action action to v3

.github/workflows/build-docker-image.yaml

@@ -14,7 +14,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       - name: Login to GHCR
         uses: docker/login-action@v2
         if: github.event_name != 'pull_request'

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.13-alpine
+FROM python:3.11-alpine
 
 COPY requirements.txt /app/
 COPY aaisp2mqtt.py /app/