Merge pull request 'Revert "Push image to Dockerhub instead of the private registry"' (#5) from private-registry-build into main

Reviewed-on: #5

.gitea/workflows/build.yml

@@ -13,11 +13,12 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-      - name: Login to Docker Hub
+      - name: Login to the private Docker registry
         uses: docker/login-action@v3
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          registry: ${{ secrets.PRIVATE_REGISTRY_HOST }}
+          username: ${{ secrets.PRIVATE_REGISTRY_USERNAME }}
+          password: ${{ secrets.PRIVATE_REGISTRY_TOKEN }}
       - name: Build and push
         uses: docker/build-push-action@v6
         with: