chore(deps): update codspeedhq/action action to v4

Author: renovate[bot]

.github/workflows/benchmark.yml

@@ -28,7 +28,7 @@ jobs:
         run: cargo codspeed build --features codspeed
 
       - name: Run benchmark
-        uses: CodSpeedHQ/action@76578c2a7ddd928664caa737f0e962e3085d4e7c # v3.8.1
+        uses: CodSpeedHQ/action@6eeb021fd0f305388292348b775d96d95253adf4 # v4.0.0
         with:
           run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}