ci: add new build step

.gitea/workflows/push-registry.yml

@@ -20,6 +20,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
       # Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
       - name: Log in to the Container registry
         uses: docker/login-action@v3

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.3-alpine as builder
+FROM golang:1.22.3-alpine AS builder
 
 WORKDIR /usr/src/app