action: support client_payload

.github/workflows/build-singbox-docker.yml

@@ -17,12 +17,17 @@ jobs:
         buildType: [full]
         distro: [alpine]
     runs-on: ubuntu-latest
+    env:
+      TAG: ${{ github.event.client_payload.tag || github.event.inputs.tag}}
     steps:
+      - name: Get Build Tags
+        run: | 
+          echo "Version: ${{env.TAG}}"
       - name: Checkout Source Code of 'SagerNet/sing-box'
         uses: actions/checkout@v3
         with:
           repository: 'SagerNet/sing-box'
-          ref: ${{ github.event.inputs.tag }}
+          ref: ${{env.TAG}}
           submodules: true
       - name: Checkout Action Repo
         uses: actions/checkout@v3
@@ -78,13 +83,13 @@ jobs:
           if [[ "${{ matrix.distro }}" == "distroless" && "${{ matrix.buildType }}" == "full" ]]; then
             echo "latest=etnperlong/sing-box:distroless" >> $GITHUB_OUTPUT
           fi
-          if [[ -z "${{ github.event.inputs.tag }}" ]]; then
+          if [[ -z "${{env.TAG}}" ]]; then
             echo "versioned=etnperlong/sing-box:${{ github.ref_name }}" >> $GITHUB_OUTPUT
           else
             if [[ -n "${{ steps.dockerfile.outputs.tagpost }}" ]]; then
-              echo "versioned=etnperlong/sing-box:${{ github.event.inputs.tag }}-${{ steps.dockerfile.outputs.tagpost }}" >> $GITHUB_OUTPUT
+              echo "versioned=etnperlong/sing-box:${{env.TAG}}-${{ steps.dockerfile.outputs.tagpost }}" >> $GITHUB_OUTPUT
             else
-              echo "versioned=etnperlong/sing-box:${{ github.event.inputs.tag }}" >> $GITHUB_OUTPUT
+              echo "versioned=etnperlong/sing-box:${{env.TAG}}" >> $GITHUB_OUTPUT
             fi
           fi
       - name: Build and release Docker images