created github worflow to update the file and create a pull-request

.github/workflows/auto_update_price_and_context_window.yml

@@ -0,0 +1,28 @@
+name: Updates model_prices_and_context_window.json and Create Pull Request
+
+on:
+  schedule:
+    - cron: "0 0 * * 0"  # Run every Sundays at midnight
+    #- cron: "0 0 * * *" # Run daily at midnight
+
+jobs:
+  auto_update_price_and_context_window:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Dependencies
+        run: |
+          pip install aiohttp
+      - name: Update JSON Data
+        run: |
+          python ci_cd/auto_update_price_and_context_window_file.py
+      - name: Create Pull Request
+        run: |
+          git add model_prices_and_context_window.json 
+          git commit -m "Update model_prices_and_context_window.json file: $(date +'%Y-%m-%d')" 
+          gh pr create --title "Update model_prices_and_context_window.json file" \
+            --body "Automated update for model_prices_and_context_window.json" \
+            --head auto-update-price-and-context-window-$(date +'%Y-%m-%d') \
+            --base main
+        env:
+          GH_TOKEN: ${{ secrets.GH_TOKEN }}