Pull request #1806: PIPE-2738: Update RTD setup
Merge in PIPE/pipeline from PIPE-2738-update-readthedocs-yaml to main
* commit 'f2cc52c1605ce1c02653e06d845bc3581eeaad47': PIPE-2738: Update ReadTheDocs configuration to use Python 3.12 and Pixi for building documentation
Pull request #1805: PIPE-3077: doc update on regression test, pixi tasks
Merge in PIPE/pipeline from PIPE-3077-isolate-individual-regression-tests-from-casa-stateful-behavior to main
* commit '72a633b55efcf3af84583b240744337865ac7a6b': PIPE-3077: Remove deprecated environment configuration files for pipeline and pipeline-vlass2026 PIPE-3077: `pyproject.toml` improve comments and move pandoc to docs env PIPE-3077: Refactor Pixi task documentation for clarity and consistency PIPE-3077: Update documentation and configuration for running tests with pixi and pytest
