[fix][CI] Fix auto merge action (#367)

* Added nightly merge workflow

* Fixed branch names

* Change nightly merge to git script

* Delete nightly merge and remove git fetch

Author: Andrews2024

.github/workflows/automerge.yml

@@ -0,0 +1,29 @@
+name: 'Auto Merge GH-Pages'
+
+on:
+  push:
+    branches:
+        - main
+
+jobs:
+  merge-main-to-gh-pages:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0 # Full clone necessary for proper merge
+
+    - name: Set git config
+      run: |
+        git config --local user.email "[email protected]"
+        git config --local user.name "Github Actions"
+    
+    - name: Merge main into gh-pages
+      run: |
+        git checkout gh-pages
+        git pull
+        git merge --no-ff main -m "Automatically merge main into gh-pages"
+        git push