fix: add Python dependencies to CI/CD for scraper tests

The API tests were failing in CI/CD because the recipe-scrapers Python
module was not installed. Added Python setup and pip install steps to
the test-api job to ensure scraper.service.real.test.ts tests have the
required dependencies available.

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

.gitea/workflows/main.yml

@@ -66,6 +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: Install dependencies
         run: npm ci