Revert "Upgrade setuptools"

This reverts commit 8cc18f5.

Author: EmilienM

action.yaml

@@ -19,9 +19,6 @@ runs:
     - name: Install python pip
       run: python -m pip install --upgrade pip
       shell: bash
-    - name: Upgrade setuptools
-      run: sudo pip install setuptools --upgrade
-      shell: bash
     # https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-README.md#mysql
     - name: Start MySQL
       run: sudo systemctl start mysql.service