added develop build pipeline for preview builds

.github/workflows/develop.yml

@@ -0,0 +1,43 @@
+name: ci 
+on:
+  push:
+    branches:
+      - develop
+permissions:
+  contents: write
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    if: github.event.repository.fork == false
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Configure Git Credentials
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
+      - uses: actions/cache@v4
+        with:
+          key: mkdocs-material-${{ env.cache_id }}
+          path: .cache
+          restore-keys: |
+            mkdocs-material-
+      - run: apt-get update && apt-get install -y pngquant rsync
+      - run: pip install git+https://${GH_TOKEN}@github.com/squidfunk/mkdocs-material-insiders.git
+      - run: pip install -r requirements.txt
+      - run: mkdocs build
+      - name: Create private key
+        run: |
+          echo "${{ secrets.ACT_RUNNER_KEY }}" > /tmp/act_runner_key
+          chmod 600 /tmp/act_runner_key          
+      - name: rsync public directory
+        run: |
+          /usr/bin/rsync -avz --delete -e "ssh -i /tmp/act_runner_key -o StrictHostKeyChecking=no" ${{ gitea.workspace }}/site/* root@vps03.hadan-it.com:/data/webspace/stephan.preview.hadan.de/          
+      - run: echo "This job's status is ${{ job.status }}."
+env:
+  GH_TOKEN: ${{ secrets.GH_TOKEN }}