fixup! Automate running locust in the CI

.github/workflows/api.yml

@@ -92,6 +92,8 @@ jobs:
       QUALICHARGE_EXECUTION_ENVIRONMENT: ci
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.head_ref }}
       - name: Create postgis extension
         run: psql "postgresql://qualicharge:pass@localhost:5432/qualicharge-api" -c "create extension postgis;"
       - name: Install pipenv
@@ -163,7 +165,7 @@ jobs:
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git add -f ../../data/bench.csv
           git commit -m "⚡️(api) update benchmark database"
-          git push origin "HEAD:${GITHUB_HEAD_REF}"
+          git push
       - name: Generate markdown table
         run: |
           echo -e "### Current benchmark\n" >> bench_admin_stats.md && \