Previously using inexact predicates would yield ambiguous results whether a point
is inside or outside of a projected element, depending on compiler and architecture.

The exact predicates are slower, so one could think about to add a run-time flag to
use exact or inexact predicates giving the user an option for fast or correct calculations.

Jupyter Notebook: Convergence study of the disc with hole problem.

See merge request ogs/ogs!4235

Different environments (local, CI) might have different output
directories for simulation results

resolve issue #3317  "Job Failed #232323"

Closes #3317

See merge request ogs/ogs!4275

Fix trailing whitespaces on 'empty' lines in XDMF output.

See merge request ogs/ogs!4274

Jupyter notebook: 1D decay-chain problem

See merge request ogs/ogs!4239

[ci] Fix builds (MKL, Python mac / win)

See merge request ogs/ogs!4269

Also update pip and setuptools on venv creation.