Simplify publish workflow for Gitea runner

.gitea/workflows/publish.yml

@@ -6,8 +6,8 @@ on:
       - main
 
 jobs:
-  lint-test:
+  publish:
-    name: Lint and test
+    name: Test, build, and push image
     runs-on: ubuntu-latest
     container:
       image: golang:1.24-bookworm
@@ -41,27 +41,6 @@ jobs:
       - name: Test
         run: go test ./...
 
-  build-push:
-    name: Build and push image
-    runs-on: ubuntu-latest
-    needs: lint-test
-    container:
-      image: docker:27-git
-    steps:
-      - name: Checkout
-        env:
-          TOKEN: ${{ github.token }}
-        run: |
-          set -eu
-          git init .
-          if [ -n "${TOKEN:-}" ]; then
-            git remote add origin "https://x-access-token:${TOKEN}@k3gtpi.jumpingcrab.com/${GITHUB_REPOSITORY}.git"
-          else
-            git remote add origin "https://k3gtpi.jumpingcrab.com/${GITHUB_REPOSITORY}.git"
-          fi
-          git fetch --depth=1 origin "${GITHUB_SHA}"
-          git checkout --detach FETCH_HEAD
-
       - name: Read version
         run: |
           version="$(tr -d '[:space:]' < VERSION)"
@@ -72,6 +51,12 @@ jobs:
           echo "VERSION=$version" >> "$GITHUB_ENV"
           echo "IMAGE=k3crpi.jumpingcrab.com:5000/sabisan:$version" >> "$GITHUB_ENV"
 
+      - name: Install Docker CLI
+        run: |
+          apt-get update
+          apt-get install -y --no-install-recommends docker.io
+          rm -rf /var/lib/apt/lists/*
+
       - name: Log in to registry
         run: |
           echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login k3crpi.jumpingcrab.com:5000 \