fix: build action tag error

.gitea/workflows/debian.yaml

@@ -13,10 +13,10 @@ jobs:
         include:
           - name: debian:trixie
             dockerfile: debian/Dockerfile
-            tags: ${{ gitea.server_url }}/cn/debian:trixie,${{ gitea.server_url }}/cn/debian:latest
+            tags: gitea.starryskymeow.cn/cn/debian:trixie,gitea.starryskymeow.cn/cn/debian:latest
           - name: debian:bookworm
             dockerfile: debian/bookworm.Dockerfile
-            tags: ${{ gitea.server_url }}/cn/debian:bookworm
+            tags: gitea.starryskymeow.cn/cn/debian:bookworm
 
     name: Build ${{ matrix.name }}
 
@@ -27,7 +27,7 @@ jobs:
       - name: Log in to Docker Hub
         uses: https://gitea.starryskymeow.cn/mirrors/docker-login-action@v4
         with:
-          registry: ${{ gitea.server_url }}
+          registry: gitea.starryskymeow.cn
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}