[ci] Refactor notebook testing

Before: Notebooks were run in build jupyter-job inside a container with PETSc-config.

Now:

• Notebooks are run in build linux arch (serial config)
• Some notebooks are run in build linux petsc (petsc config)
• Jupyter container are build on master-only (in container-job)
• Feedback on Notebook tests are much faster!
• Notebook tests have to be added to ctest by using NotebookTest() CMake function (are active when OGS_USE_PIP=ON)
  • Therefore notebooks are executed also on other platforms (had to disable Linear_Disc_with_hole_convergence_analysis on Windows because it did not run in CI (no ogs output) and I could not reproduce the error)
• Added new job test notebooks via wheel which runs the notebooks with a specific OGS pip package (see requirements-ogs.txt)

Also:

• Notebook requirements were moved to Tests/Data/requirements*.txt (from versions.json)
• Refactored notebooks to use an output directory for all outputs (separates from source-directory)
• Refactored docs on notebooks a bit

1. Feature description was added to the changelog
2. Tests covering your feature were added?
3. Any new feature or behavior change was documented?
4. mac
5. win ('msh2vtu' is not recognized as an internal or external command,)
6. linux docker
7. container-maker