fix: remove symlink before artifact upload to prevent infinite loop (#138)

The dist/tutorial-git symlink causes upload-pages-artifact to
recurse infinitely. Remove it after lychee finishes.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: braboj

.github/workflows/deploy.yml

@@ -48,6 +48,9 @@ jobs:
           args: --root-dir astro-site/dist --config lychee.toml 'astro-site/dist/**/*.html'
           fail: true
 
+      - name: Remove symlink before upload
+        run: rm astro-site/dist/tutorial-git
+
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with: