Delete .github/workflows/sync.yml

.github/workflows/sync.yml

-name: Upstream Sync
-
-permissions:
-  contents: write
-  issues: write
-  actions: write
-
-on:
-  schedule:
-    - cron: '0 * * * *' # every hour
-  workflow_dispatch:
-
-jobs:
-  sync_latest_from_upstream:
-    name: Sync latest commits from upstream repo
-    runs-on: ubuntu-latest
-    if: ${{ github.event.repository.fork }}
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Clean issue notice
-        uses: actions-cool/issues-helper@v3
-        with:
-          actions: 'close-issues'
-          labels: '🚨 Sync Fail'
-
-      - name: Sync upstream changes
-        id: sync
-        uses: aormsby/Fork-Sync-With-Upstream-action@v3.4
-        with:
-          upstream_sync_repo: open-webui/open-webui
-          upstream_sync_branch: main
-          target_sync_branch: main
-          target_repo_token: ${{ secrets.GITHUB_TOKEN }} # automatically generated, no need to set
-          test_mode: false
-
-      - name: Sync check
-        if: failure()
-        uses: actions-cool/issues-helper@v3
-        with:
-          actions: 'create-issue'
-          title: '🚨 Sync Fail'
-          labels: '🚨 Sync Fail'
-          body: |
-            Due to a change in the workflow file of the [open-webui] upstream repository, GitHub has automatically suspended the scheduled automatic update. You need to manually sync your fork. Please refer to the detailed [Tutorial][tutorial-en-US] for instructions.
-            [open-webui]: https://github.com/open-webui/open-webui
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