Use the Bash shell everywhere to keep the same scripts for all OSes

Author: popescu-v

.github/workflows/test-conda-forge-package.yml

@@ -38,6 +38,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
           conda-remove-defaults: true
       - name: Install the Khiops Conda package
+        shell: bash
         run: |
           # Add the Conda `rc` label for alpha or RC pre-releases
           if [[ $(echo ${{ inputs.khiops-python-version }} | grep -E ".*(a|rc)\.[0-9]+") ]]; then
@@ -47,8 +48,10 @@ jobs:
           fi
           conda install "${RC_LABEL}"khiops==${{ inputs.khiops-python-version }}
       - name: Test Khiops Installation Status
+        shell: bash
         run: kh-status
       - name: Test Khiops Installation Status (Conda-Based Environments)
+        shell: bash
         run: |
           # Set `python` to the current Conda Python executable
           PYTHON="$(type -P python)"
@@ -96,6 +99,7 @@ jobs:
           OMPI_MCA_rmaps_base_oversubscribe: true
           # Oversubscribe for Open MPI >= 5
           PRTE_MCA_rmaps_default_mapping_policy: :oversubscribe
+        shell: bash
         run: |
           # Set `python` to the current Conda Python executable
           PYTHON="$(type -P python)"
@@ -132,6 +136,7 @@ jobs:
       - name: Install the Test Requirements
         run: conda install -y --file test-requirements.txt
       - name: Run the Runner Initialization Integration Test
+        shell: bash
         run: |
           python -m unittest -v \
             tests.test_khiops_integrations.KhiopsRunnerEnvironmentTests.test_runner_environment_initialization