Update benchmark.yml (#1462)

Author: collerek

.github/workflows/benchmark.yml

@@ -35,5 +35,6 @@ jobs:
       - name: Run benchmarks
         uses: CodSpeedHQ/action@v4
         with:
+          mode: instrumentation
           token: ${{ secrets.CODSPEED_TOKEN }}
-          run: poetry run pytest benchmarks/ --codspeed
+          run: poetry run pytest benchmarks/ --codspeed