add github action

.github/workflows/packup.yaml

@@ -0,0 +1,22 @@
+name: packup
+
+on:
+  workflow_dispatch:
+
+jobs:
+  packup:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v2
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+      - name: Build
+        run: make
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: feishu2md-amd64
+          path: ./bin/*/*