ci: replace sync_submodules step with init/update built-in

.gitea/workflows/dev.yml

@@ -0,0 +1,45 @@
+name: dev
+on:
+  push:
+    tags:
+      - dev
+    branches:
+      - 'dev'
+    paths:
+      - '.ci/tag.env'
+jobs:
+  build-and-push:
+    runs-on: docker
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: recursive
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to Gitea Registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.4nkweb.com
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+      - name: Init submodules (ensure up-to-date)
+        run: |
+          git submodule sync --recursive
+          git submodule update --init --recursive
+      - name: Build and push images
+        env:
+          REGISTRY: git.4nkweb.com
+        run: |
+          COMMIT_MSG=$(git log -1 --pretty=%B)
+          FROM_COMMIT=$(printf "%s" "$COMMIT_MSG" | sed -n 's/.*ci:[[:space:]]*docker_tag=\([^ ][^\n]*\).*/\1/p' | head -n1)
+          if [ -n "$FROM_COMMIT" ]; then
+            DOCKER_TAG="$FROM_COMMIT"
+          elif [ -f .ci/tag.env ]; then
+            # shellcheck disable=SC1091
+            . .ci/tag.env
+          else
+            DOCKER_TAG="${GITHUB_REF_NAME:-dev-test}"
+          fi
+          bash scripts/build_and_push.sh "$DOCKER_TAG"