Update GitHub Actions workflow for Python testing

Author: guglielmopadula

.github/workflows/testing_pr.yml

@@ -5,39 +5,36 @@ on:
     branches:
       - "master"
 
+
 jobs:
   build:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         os: [windows-latest, macos-latest, ubuntu-latest]
-        python-version: ["3.9", "3.10"]
-
+        python-version: ["3.9", "3.10"]        
     steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-
-      - name: Setup Conda
-        uses: s-weigand/setup-conda@v1
-        with:
-          python-version: ${{ matrix.python-version }}
-          update-conda: true
-          conda-channels: conda-forge, anaconda
-
-      - name: Install pythonocc-core (Conda)
-        run: conda install --yes -c conda-forge -c anaconda pythonocc-core
-        shell: bash
-
-      - name: Install pip dependencies
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install smithers[vtk]
-          python -m pip install .[test]
-
-      - name: Run tests with pytest
-        run: python -m pytest -v
+    - uses: actions/checkout@v2
+
+    
+    - name: Installing conda
+      uses: conda-incubator/setup-miniconda@v3
+      
+      with:
+        auto-update-conda: true
+        python-version: ${{ matrix.python-version }}
+        channels: anaconda, conda-forge
+    
+    - name: Installing packages
+      shell: bash -el {0}
+      run: |
+        conda install --yes -c conda-forge -c anaconda pythonocc-core
+        python -m pip install --upgrade pip
+        python -m pip install smithers[vtk]
+        python -m pip install .[test]
+    
+    - name: Test with pytest
+      shell: bash -el {0}
+      run: |
+        python -m pytest