docker: stop COPYing the removed results.jsonl

The bundled results.jsonl was git rm'd along with the leaderboard's
local fallback, but the Dockerfile still listed it in the final COPY,
so the build failed with `"/results.jsonl": not found`. Drop it from
the COPY; only the *.py sources are needed now.

Dockerfile

@@ -61,7 +61,7 @@ RUN useradd -m -u 1000 user \
     && chown -R user:user /home/user/app
 USER user
 WORKDIR /home/user/app
-COPY --chown=user:user *.py results.jsonl ./
+COPY --chown=user:user *.py ./
 
 EXPOSE 7860
 CMD ["python", "app.py"]