Add github action

.github/workflows/20.pre-release.yml

@@ -0,0 +1,20 @@
+name: "pre-release"
+
+on:
+  pull_request:
+    branches:
+      - "main"
+  workflow_dispatch:
+
+jobs:
+  pre-release:
+    name: "Pre Release"
+    runs-on: "ubuntu-latest"
+
+    steps:
+      - uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: "pre-release"
+          prerelease: true
+          title: "Pre-Stage Build"