ci: align registry secrets with Harbor convention

.gitea/workflows/build.yaml

@@ -3,11 +3,24 @@ on:
   push:
     branches: [main]
 
+env:
+  HARBOR_IMAGE: ${{ vars.HARBOR_ADDR }}/docker-compose-updater
+
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Login Harbor
+        uses: https://gitea.songhuwan.com/actions/login-action@v3.2.0
+        with:
+          registry: ${{ vars.HARBOR_ADDR }}
+          username: ${{ secrets.HARBOR_USERNAME }}
+          password: ${{ secrets.HARBOR_PASSWORD }}
+
+      - name: Checkout
+        uses: https://gitea.songhuwan.com/actions/checkout@v4
+        with:
+          token: ${{ secrets.CHECKOUT_TOKEN }}
 
       - name: Build updater binary (test only)
         run: |
@@ -15,14 +28,12 @@ jobs:
           go build -o /dev/null ./cmd/updater
           go build -o /dev/null ./cmd/dcu-send
 
-      - name: Log in to registry
-        run: docker login -u ${{ secrets.REGISTRY_USER }} -p ${{ secrets.REGISTRY_PASS }} ${{ secrets.REGISTRY_URL }}
-
       - name: Build and push updater image
         run: |
           PUBLIC_KEY_BASE64=$(base64 -w0 < keys/signing-public.pem)
           docker build \
             --build-arg PUBLIC_KEY_BASE64=$PUBLIC_KEY_BASE64 \
-            -t ${{ secrets.REGISTRY_URL }}/docker-compose-updater:latest \
+            -t ${{ env.HARBOR_IMAGE }}:latest \
+            -t ${{ env.HARBOR_IMAGE }}:${{ github.SHA }} \
             -f deploy/Dockerfile .
-          docker push ${{ secrets.REGISTRY_URL }}/docker-compose-updater:latest
+          docker push --all-tags ${{ env.HARBOR_IMAGE }}