build(ci): build image by CI

.github/workflows/build.yml

@@ -22,6 +22,19 @@ jobs:
         env:
           ALPINE_PKG_URL: https://pkgs.alpinelinux.org/package/edge/testing/x86_64/qbittorrent-nox
 
+  build:
+    runs-on: ubuntu-latest
+    needs: check
+    permissions:
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Build
+        run: make build
+
   meta:
     runs-on: ubuntu-latest
     needs: check