Run CodSpeed workflow on Ubuntu 22.04

Ubuntu 24.04, which recently became the default version for the `ubuntu-latest` label,
doesn't seem to be yet supported by the CodSpeed action:

```
Error: Failed to prepare environment: Error: Only Ubuntu 20.04 and 22.04 are supported for now
```

https://github.com/python-pendulum/pendulum/actions/runs/12788370535/job/35649510157?pr=874

Author: edgarrmondragon

Diff for: .github/workflows/codspeed.yml

@@ -46,7 +46,7 @@ jobs:
           python -c 'import pendulum._pendulum'
 
       - name: Run benchmarks
-        uses: CodSpeedHQ/action@v1
+        uses: CodSpeedHQ/action@v3
         with:
           token: ${{ secrets.CODSPEED_TOKEN }}
           run: pytest tests/ --codspeed