Run the automated tests on rocky9 instead of ubuntu22.04 to avoid a lot of hacks

Author: Thierry RAMORASOAVINA

.github/workflows/tests.yml

@@ -33,7 +33,7 @@ concurrency:
   cancel-in-progress: true
 jobs:
   run:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-22.04  # Github-Hosted runner which OS will be overridden
     strategy:
       fail-fast: false
       matrix:
@@ -43,7 +43,7 @@ jobs:
       # because the `env` context is only accessible at the step level;
       # hence, it is hard-coded
       image: |-
-        ghcr.io/khiopsml/khiops-python/khiopspydev-ubuntu22.04:${{ inputs.image-tag || '11.0.0-a.2.0' }}
+        ghcr.io/khiopsml/khiops-python/khiopspydev-rocky9:${{ inputs.image-tag || '11.0.0-a.2.0' }}
       credentials:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
@@ -92,7 +92,6 @@ jobs:
           done
       - name: Install khiops-python dependencies
         if: success() || failure()
-        shell: bash
         run: |
           # The following git command is required,
           # as the Git repository is in a directory the current user does not own,
@@ -110,15 +109,7 @@ jobs:
             # Add homogeneous TOML support (Python >= 3.12 has standard tomllib)
             $CONDA install -y -n "$CONDA_ENV" tomli
             $CONDA run --no-capture-output -n "$CONDA_ENV" python scripts/extract_dependencies_from_pyproject_toml.py -f "pyproject.toml" > requires.txt
-            if [[ "${{ matrix.python-version }}" == "3.8" ]]; then
-              # for python3.8 a pinned version of python is required to avoid installation conflicts
-              $CONDA install -y -n "$CONDA_ENV" `cat requires.txt` python=${{ matrix.python-version }} python_abi=${{ matrix.python-version }}
-            elif [[ "${{ matrix.python-version }}" == "3.9" ]]; then
-              # for python3.9 only, conda "forgets" the specific dev channel used for khiops-core 
-              $CONDA install -c khiops-dev -y -n "$CONDA_ENV" `cat requires.txt`
-            else
-              $CONDA install -y -n "$CONDA_ENV" `cat requires.txt`              
-            fi
+            $CONDA install -y -n "$CONDA_ENV" `cat requires.txt`                          
             rm -f requires.txt
           done
       - name: Configure Expensive Tests Setting