Update setuptools version

Author: danielandresarcones

.github/workflows/push.yaml

@@ -48,7 +48,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install package with dependencies
         run: |
-          python -m pip install --upgrade pip setuptools wheel
+          python -m pip install --upgrade pip setuptools==68.0.0 wheel
           pip install .[tests] 
       - name: Test with pytest
         run: |
@@ -118,7 +118,7 @@ jobs:
         - name: Install package with latest dependencies
           run: |
             python probeye/_setup_cfg.py
-            python -m pip install --upgrade pip setuptools wheel
+            python -m pip install --upgrade pip setuptools==68.0.0 wheel
             pip install .[tests]
         - name: Test with pytest
           run: |