[ci-skip] remove auto upstream update

.github/workflows/upstream.yml

@@ -1,47 +0,0 @@
-name: Upstream Purpur
-on:
-  workflow_dispatch: {}
-  schedule:
-    - cron: "0 0 */3 * *"
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout DivineMC Repository
-        uses: actions/checkout@v3
-        with:
-          path: 'DivineMC'
-          token: ${{ secrets.GITHUB_TOKEN }}
-        
-      - name: Checkout Purpur Repository
-        uses: actions/checkout@v3
-        with:
-          path: 'Purpur'
-          repository: "PurpurMC/Purpur"
-          token: ${{ secrets.GITHUB_TOKEN }}
-      
-      - name: Get Purpur Latest Commit Hash
-        id: purpurRef
-        run: |
-          ls
-          cd Purpur
-          echo "::set-output name=purpurRef::$(git rev-parse HEAD)"
-          cd ..
-          
-      - name: Update purpurRef in DivineMC 
-        run: |
-          cd DivineMC
-          sed -i "s/\(purpurRef\s*=\s*\).*/\1$PAPER_REF/" gradle.properties
-        env:
-          PAPER_REF: ${{ steps.purpurRef.outputs.purpurRef }}
-      - name: Check for changes and Write to repository
-        run: |
-          cd DivineMC
-          if ! git diff --quiet; then
-            git add gradle.properties
-            git config --global user.email "action@github.com" && git config --global user.name "Github Action"
-            git commit -m "Updated Upstream (Purpur)"
-            git push
-          else
-            echo "No changes to commit."
-          fi