fix: use direct Python installation in CI/CD instead of action

The actions/setup-python@v5 action doesn't work in Gitea Actions
environment. Replaced with direct shell commands to check for python3
availability and install recipe-scrapers package directly with pip3.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.gitea/workflows/main.yml

@@ -66,13 +66,14 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
 
-      - name: Setup Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.x'
-
-      - name: Install Python dependencies
-        run: pip3 install recipe-scrapers
+      - name: Setup Python and dependencies
+        run: |
+          # Check if python3 is available, install if not
+          if ! command -v python3 &> /dev/null; then
+            apt-get update -qq && apt-get install -y -qq python3 python3-pip
+          fi
+          # Install recipe-scrapers
+          pip3 install recipe-scrapers
 
       - name: Install dependencies
         run: npm ci