Detect "unhappy" installation states

- Warn when the version tuple (major, minor, patch) of Khiops does not match the Khiops Python library one
- Fix the types of the returned objects in `_build_status_message`
- Detect installation incompatibilities in an active conda environment
 - Detect installation incompatibilities in a conda-based environment or a virtual environment

Author: Thierry RAMORASOAVINA

.github/workflows/api-docs.yml

@@ -54,6 +54,9 @@ jobs:
         run: echo PATH="$PATH:/github/home/.local/bin" >> "$GITHUB_ENV"
       - name: Install doc build requirements
         run: |
+          python -m venv .venvdocs
+          source .venvdocs/bin/activate
+
           # Install package itself to install the samples datasets
           pip3 install .
           kh-download-datasets --force-overwrite
@@ -65,6 +68,7 @@ jobs:
       # Clone the Khiops Python tutorial repository while building the documentation
       - name: Build Sphinx Documentation
         run: |
+          source .venvdocs/bin/activate
           cd doc
           ./create-doc -t -d -g \
           ${{ inputs.khiops-python-tutorial-revision || env.DEFAULT_KHIOPS_PYTHON_TUTORIAL_REVISION }}