Add gradio_pdf to requirements in index.js

Author: freddyaboulton

actions/copy-demos/dist/index.js

@@ -2074,6 +2074,7 @@ pypistats==1.1.0
 plotly
 matplotlib
 altair
+gradio_pdf
 vega_datasets
 	`.trim();
   fs$1.writeFileSync(reqs_file_path, requirements);