Update pip to 23.3.1 to fix vulnerability
Update `pip` to 23.3.1 to fix vulnerability.

See: https://github.com/huggingface/datasets-server/actions/runs/6697364484/job/18197081786?pr=2031
```
Found 1 known vulnerability in 1 package
Name Version ID                  Fix Versions
---- ------- ------------------- ------------
pip  23.1.2  GHSA-mq26-g339-26xf 23.3
```
Update pip to 23.3.1 to fix vulnerability: Update `pip` to 23.3.1 to fix vulnerability.

See: https://github.com/huggingface/datasets-server/actions/runs/6697364484/job/18197081786?pr=2031
```
Found 1 known vulnerability in 1 package
Name Version ID                  Fix Versions
---- ------- ------------------- ------------
pip  23.1.2  GHSA-mq26-g339-26xf 23.3
```