chore(workflow): remove sync_dev

.github/workflows/sync_dev.yml

@@ -1,23 +0,0 @@
-name: Merge dev into main
-
-on:
-  workflow_dispatch:
-
-jobs:
-  sync_dev:
-    runs-on: ubuntu-latest
-
-    permissions:
-      contents: write
-      pull-requests: write
-
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: main
-
-      - name: Create Pull Request
-        run: |
-          gh pr create --title "chore(sync): merge dev into main" --body "Merge dev to main" --base main --head dev
-        env:
-          GH_TOKEN: ${{ github.token }}