Prepare Release 10.2.4.0

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Checklist:

• Create branch
• Update CHANGELOG.md
• Push this issue branch and create PR for it
• Merge PR into dev
• Git tag dev with 10.2.4.0-rc.1
• Push the 10.2.4.0-rc.1 tag on dev; thus, [.github/workflows/pip.yml] and [.github/workflows/conda.yml] are automatically launched on the 10.2.4.0-rc.1 tag; whence, a GitHub pre-release is created, the Pip packages are pushed to the pre-release, and the Conda packages are pushed to the default khiops-dev channel;
• Manually launch the full automatic tests on the CI (by checking the "Long tests" box) on the 10.2.4.0-rc.1 tag
• Manually inspect the CI logs on the 10.2.4.0-rc.1 tag for the following workflows [.github/workflows/pip.yml], [.github/workflows/conda.yml] and [.github/workflows/unit-tests.yml] to make sure no warning or error is present therein
• Manually test the 10.2.4.0rc.1 Conda packages on all target environments
• If 10.2.4.0-rc.1 tests are successful, then create PR to merge dev into main;
• Merge PR into main;
• Git tag main with 10.2.4.0;
• Push the 10.2.4.0 tag on main; thus, [.github/workflows/pip.yml] and [.github/workflows/conda.yml] are automatically launched on the 10.2.4.0 tag; whence, a GitHub pre-release is created, the Pip packages are pushed to the pre-release, and the Conda packages are pushed to the default khiops-dev channel;
• Launch [.github/workflows/conda.yml] manually, on the 10.2.4.0 tag, selecting the official khiops channel;
• Copy relevant CHANGELOG.md contents to the 10.2.4.0 GitHub pre-release;
• (After the Conda package has been pushed to the official khiops channel and the API doc has been deployed) Transform the 10.2.4.0 GitHub pre-release into a release.
• Launch [.github/workflows/api-docs.yml] manually on the 10.2.4.0 tag and instruct it to deploy the documentation pages;
• Make dev point to the merge commit just created in main. This is necessary to include the merge commit into main to calculate intermediary versions with Versioneer. Steps:

        git switch dev
        git reset --hard main
        git push origin dev # (you need to remove the protections of dev for this step)

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Manual testing report:

• Colab : OK
• JuPyter : OK
• Kaggle : ~ OK, but Conda envs don't seem to be supported in a straightforward way anymore.

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All tasks have been completed.