fix: use shell commands for docker build/push in CI

.gitea/workflows/ci.yml

@@ -7,22 +7,15 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    container:
-      image: catthehacker/ubuntu:act-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
       - name: Login to Gitea Registry
-        uses: docker/login-action@v3
-        with:
-          registry: gitea.chatgqt.top
-          username: ${{ gitea.actor }}
-          password: ${{ secrets.REGISTRY_TOKEN }}
+        run: echo "${{ secrets.REGISTRY_TOKEN }}" | docker login gitea.chatgqt.top -u ${{ gitea.actor }} --password-stdin
 
-      - name: Build and Push
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          push: true
-          tags: gitea.chatgqt.top/gqt/test-ci:latest
+      - name: Build Docker Image
+        run: docker build -t gitea.chatgqt.top/gqt/test-ci:latest .
+
+      - name: Push Docker Image
+        run: docker push gitea.chatgqt.top/gqt/test-ci:latest