[WIP] Move Space CI config to README.md

I updated https://huggingface.co/spaces/Wauplin/gradio-space-ci to version `0.2.0`. CI config is now handled from the README.md file directly. Short term goal is to have as little changes as possible in `app.py` to integrate the CI. Longer term goal is to make it handled by default in Gradio (i.e. completely remove from `app.py`).

README.md

@@ -10,6 +10,11 @@ pinned: true
 license: apache-2.0
 duplicated_from: HuggingFaceH4/open_llm_leaderboard
 fullWidth: true
+space_ci: # See https://huggingface.co/spaces/Wauplin/gradio-space-ci
+  private: true
+  secrets:
+    - HF_TOKEN
+    - H4_TOKEN
 ---
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference